Pursuing Truth: A Guide to Critical Thinking
Chapter 2 arguments.
The fundamental tool of the critical thinker is the argument. For a good example of what we are not talking about, consider a bit from a famous sketch by Monty Python’s Flying Circus : 3
2.1 Identifying Arguments
People often use “argument” to refer to a dispute or quarrel between people. In critical thinking, an argument is defined as
A set of statements, one of which is the conclusion and the others are the premises.
There are three important things to remember here:
- Arguments contain statements.
- They have a conclusion.
- They have at least one premise
Arguments contain statements, or declarative sentences. Statements, unlike questions or commands, have a truth value. Statements assert that the world is a particular way; questions do not. For example, if someone asked you what you did after dinner yesterday evening, you wouldn’t accuse them of lying. When the world is the way that the statement says that it is, we say that the statement is true. If the statement is not true, it is false.
One of the statements in the argument is called the conclusion. The conclusion is the statement that is intended to be proved. Consider the following argument:
Calculus II will be no harder than Calculus I. Susan did well in Calculus I. So, Susan should do well in Calculus II.
Here the conclusion is that Susan should do well in Calculus II. The other two sentences are premises. Premises are the reasons offered for believing that the conclusion is true.
2.1.1 Standard Form
Now, to make the argument easier to evaluate, we will put it into what is called “standard form.” To put an argument in standard form, write each premise on a separate, numbered line. Draw a line underneath the last premise, the write the conclusion underneath the line.
- Calculus II will be no harder than Calculus I.
- Susan did well in Calculus I.
- Susan should do well in Calculus II.
Now that we have the argument in standard form, we can talk about premise 1, premise 2, and all clearly be referring to the same thing.
2.1.2 Indicator Words
Unfortunately, when people present arguments, they rarely put them in standard form. So, we have to decide which statement is intended to be the conclusion, and which are the premises. Don’t make the mistake of assuming that the conclusion comes at the end. The conclusion is often at the beginning of the passage, but could even be in the middle. A better way to identify premises and conclusions is to look for indicator words. Indicator words are words that signal that statement following the indicator is a premise or conclusion. The example above used a common indicator word for a conclusion, ‘so.’ The other common conclusion indicator, as you can probably guess, is ‘therefore.’ This table lists the indicator words you might encounter.
Therefore | Since |
So | Because |
Thus | For |
Hence | Is implied by |
Consequently | For the reason that |
Implies that | |
It follows that |
Each argument will likely use only one indicator word or phrase. When the conlusion is at the end, it will generally be preceded by a conclusion indicator. Everything else, then, is a premise. When the conclusion comes at the beginning, the next sentence will usually be introduced by a premise indicator. All of the following sentences will also be premises.
For example, here’s our previous argument rewritten to use a premise indicator:
Susan should do well in Calculus II, because Calculus II will be no harder than Calculus I, and Susan did well in Calculus I.
Sometimes, an argument will contain no indicator words at all. In that case, the best thing to do is to determine which of the premises would logically follow from the others. If there is one, then it is the conclusion. Here is an example:
Spot is a mammal. All dogs are mammals, and Spot is a dog.
The first sentence logically follows from the others, so it is the conclusion. When using this method, we are forced to assume that the person giving the argument is rational and logical, which might not be true.
2.1.3 Non-Arguments
One thing that complicates our task of identifying arguments is that there are many passages that, although they look like arguments, are not arguments. The most common types are:
- Explanations
- Mere asssertions
- Conditional statements
- Loosely connected statements
Explanations can be tricky, because they often use one of our indicator words. Consider this passage:
Abraham Lincoln died because he was shot.
If this were an argument, then the conclusion would be that Abraham Lincoln died, since the other statement is introduced by a premise indicator. If this is an argument, though, it’s a strange one. Do you really think that someone would be trying to prove that Abraham Lincoln died? Surely everyone knows that he is dead. On the other hand, there might be people who don’t know how he died. This passage does not attempt to prove that something is true, but instead attempts to explain why it is true. To determine if a passage is an explanation or an argument, first find the statement that looks like the conclusion. Next, ask yourself if everyone likely already believes that statement to be true. If the answer to that question is yes, then the passage is an explanation.
Mere assertions are obviously not arguments. If a professor tells you simply that you will not get an A in her course this semester, she has not given you an argument. This is because she hasn’t given you any reasons to believe that the statement is true. If there are no premises, then there is no argument.
Conditional statements are sentences that have the form “If…, then….” A conditional statement asserts that if something is true, then something else would be true also. For example, imagine you are told, “If you have the winning lottery ticket, then you will win ten million dollars.” What is being claimed to be true, that you have the winning lottery ticket, or that you will win ten million dollars? Neither. The only thing claimed is the entire conditional. Conditionals can be premises, and they can be conclusions. They can be parts of arguments, but that cannot, on their own, be arguments themselves.
Finally, consider this passage:
I woke up this morning, then took a shower and got dressed. After breakfast, I worked on chapter 2 of the critical thinking text. I then took a break and drank some more coffee….
This might be a description of my day, but it’s not an argument. There’s nothing in the passage that plays the role of a premise or a conclusion. The passage doesn’t attempt to prove anything. Remember that arguments need a conclusion, there must be something that is the statement to be proved. Lacking that, it simply isn’t an argument, no matter how much it looks like one.
2.2 Evaluating Arguments
The first step in evaluating an argument is to determine what kind of argument it is. We initially categorize arguments as either deductive or inductive, defined roughly in terms of their goals. In deductive arguments, the truth of the premises is intended to absolutely establish the truth of the conclusion. For inductive arguments, the truth of the premises is only intended to establish the probable truth of the conclusion. We’ll focus on deductive arguments first, then examine inductive arguments in later chapters.
Once we have established that an argument is deductive, we then ask if it is valid. To say that an argument is valid is to claim that there is a very special logical relationship between the premises and the conclusion, such that if the premises are true, then the conclusion must also be true. Another way to state this is
An argument is valid if and only if it is impossible for the premises to be true and the conclusion false.
An argument is invalid if and only if it is not valid.
Note that claiming that an argument is valid is not the same as claiming that it has a true conclusion, nor is it to claim that the argument has true premises. Claiming that an argument is valid is claiming nothing more that the premises, if they were true , would be enough to make the conclusion true. For example, is the following argument valid or not?
- If pigs fly, then an increase in the minimum wage will be approved next term.
- An increase in the minimum wage will be approved next term.
The argument is indeed valid. If the two premises were true, then the conclusion would have to be true also. What about this argument?
- All dogs are mammals
- Spot is a mammal.
- Spot is a dog.
In this case, both of the premises are true and the conclusion is true. The question to ask, though, is whether the premises absolutely guarantee that the conclusion is true. The answer here is no. The two premises could be true and the conclusion false if Spot were a cat, whale, etc.
Neither of these arguments are good. The second fails because it is invalid. The two premises don’t prove that the conclusion is true. The first argument is valid, however. So, the premises would prove that the conclusion is true, if those premises were themselves true. Unfortunately, (or fortunately, I guess, considering what would be dropping from the sky) pigs don’t fly.
These examples give us two important ways that deductive arguments can fail. The can fail because they are invalid, or because they have at least one false premise. Of course, these are not mutually exclusive, an argument can be both invalid and have a false premise.
If the argument is valid, and has all true premises, then it is a sound argument. Sound arguments always have true conclusions.
A deductively valid argument with all true premises.
Inductive arguments are never valid, since the premises only establish the probable truth of the conclusion. So, we evaluate inductive arguments according to their strength. A strong inductive argument is one in which the truth of the premises really do make the conclusion probably true. An argument is weak if the truth of the premises fail to establish the probable truth of the conclusion.
There is a significant difference between valid/invalid and strong/weak. If an argument is not valid, then it is invalid. The two categories are mutually exclusive and exhaustive. There can be no such thing as an argument being more valid than another valid argument. Validity is all or nothing. Inductive strength, however, is on a continuum. A strong inductive argument can be made stronger with the addition of another premise. More evidence can raise the probability of the conclusion. A valid argument cannot be made more valid with an additional premise. Why not? If the argument is valid, then the premises were enough to absolutely guarantee the truth of the conclusion. Adding another premise won’t give any more guarantee of truth than was already there. If it could, then the guarantee wasn’t absolute before, and the original argument wasn’t valid in the first place.
2.3 Counterexamples
One way to prove an argument to be invalid is to use a counterexample. A counterexample is a consistent story in which the premises are true and the conclusion false. Consider the argument above:
By pointing out that Spot could have been a cat, I have told a story in which the premises are true, but the conclusion is false.
Here’s another one:
- If it is raining, then the sidewalks are wet.
- The sidewalks are wet.
- It is raining.
The sprinklers might have been on. If so, then the sidewalks would be wet, even if it weren’t raining.
Counterexamples can be very useful for demonstrating invalidity. Keep in mind, though, that validity can never be proved with the counterexample method. If the argument is valid, then it will be impossible to give a counterexample to it. If you can’t come up with a counterexample, however, that does not prove the argument to be valid. It may only mean that you’re not creative enough.
- An argument is a set of statements; one is the conclusion, the rest are premises.
- The conclusion is the statement that the argument is trying to prove.
- The premises are the reasons offered for believing the conclusion to be true.
- Explanations, conditional sentences, and mere assertions are not arguments.
- Deductive reasoning attempts to absolutely guarantee the truth of the conclusion.
- Inductive reasoning attempts to show that the conclusion is probably true.
- In a valid argument, it is impossible for the premises to be true and the conclusion false.
- In an invalid argument, it is possible for the premises to be true and the conclusion false.
- A sound argument is valid and has all true premises.
- An inductively strong argument is one in which the truth of the premises makes the the truth of the conclusion probable.
- An inductively weak argument is one in which the truth of the premises do not make the conclusion probably true.
- A counterexample is a consistent story in which the premises of an argument are true and the conclusion is false. Counterexamples can be used to prove that arguments are deductively invalid.
( Cleese and Chapman 1980 ) . ↩︎
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To analyze an argument is to do an “active listening” step. The point is to make sure you understand what the argument actually is before turning to the evaluative question: is it a good argument?
Standard argument form is a graphical method for displaying arguments, making plain the purpose of a statement by its placement. Premises are separated, numbered, and placed above a line, and the conclusion is placed below the line. The act of inference is represented with three dots (or the word “so”) placed next to the conclusion.
_______________________________________________
Some cases are straightforward. Here is a passage, followed by the analysis into standard form.
I have a dental cleaning scheduled for June fourth. Wow, since today is the third, I guess that means the appointment is for tomorrow.
Issue: Is my dental cleaning tomorrow?
1) My dental cleaning is scheduled for the fourth.
2) Today is the third.
SO: my dental cleaning is tomorrow.
The explicit indicator word is “since.” The premise follows that indicator. The conclusion is in the clause following the comma.
If we straightened the sentence, it would read:
The appointment is for tomorrow since today is the third.
This follows a classic pattern:
(Conclusion) since (premise.)
Note: in the analysis, the words “I guess” were left out. These words signal a thinking process is happening, and can also signal how much conviction the thinker has in their own thinking. “I guess” signals a lack of confidence. If the passage had said, “that means my appointment must be tomorrow,” a higher degree of confidence would be signaled. In general, these confidence-signaling words and phrases are not themselves part of the argument.
Here is another example:
If we want to increase defense spending, we would have to either cut domestic programs or raise taxes. You know when conservatives are in control, they aren’t going to raise taxes. So, the increase in defense spending means a cut to domestic programs, for sure.
Issue: Will increased defense spending mean a cut to domestic programs?
1) To increase defense spending requires cutting domestic spending or increasing taxes.
2) Conservatives are in control.
3) Taxes won’t be increased when conservatives are in control.
SO: an increase in defense spending means a cut to domestic programs.
This analysis is more complicated, but the first step is spotting the indicator word “so.” This gives us a clue that the last sentence is the conclusion. We then articulate the issue by putting the conclusion in the form of a question. The statements preceding the conclusion indicator are premises.
We could treat this passage as listing only two premises since the premises are presented in two separate sentences. But for purposes of evaluation, it is better to list more instead of fewer premises. It allows a greater chance for finding common ground among people coming to an issue from different points of view.
Note: the phrase “for sure” in the original passage signals the thinker has a high degree of confidence in their thinking. It was left out when putting the argument into standard form.
Standard Form Examples
Most people don’t like to be lied to. So, if you lie to someone, and they find out, they are probably not going to like it.
Issue: How do people react to be being lied to?
1) Most people don’t like to be lied to
SO: if you lie to someone, they are not going to like it.
I am working full time and going to school full time, so you know I don’t get enough sleep!
Issue: Do I get enough sleep?
1) I am working full time
2) I am going to school full time
SO: I don’t get enough sleep.
Critical Thinking in Academic Research Copyright © 2022 by Cindy Gruwell and Robin Ewing is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License , except where otherwise noted.
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What is a Good Argument?
- Welcome and Overview (2:10)
- PDF Ebook - Basic Concepts in Logic and Argumentation
- Quiz Question Discussion
- 1. What is an Argument? (4:17)
- Quiz: What is an Argument?
- 2. What is a Claim? (4:25)
- Quiz: What is a Claim?
- 3. What is a Good Argument (I)? (3:58)
- Quiz: What is a Good Argument (I)?
- 4. Identifying Premises and Conclusions (5:34)
- Quiz: Identifying Premises and Conclusions
- Discuss the Quiz Questions in This Section
- 1. The Truth Condition (6:29)
- Quiz: The Truth Condition
- 2. The Logic Condition (5:49)
- Quiz: The Logic Condition
- 3. Valid versus Invalid Arguments (5:29)
- Quiz: Valid vs Invalid Arguments
- 4. Strong versus Weak Arguments (6:38)
- Quiz: Strong vs Weak Arguments
- 5. What is a Good Argument (II)? (1:57)
- Quiz: What is a Good Argument (II)?
- 1. Deductive Arguments and Valid Reasoning (2:18)
- Quiz: Deductive Arguments and Valid Reasoning
- 2. Inductive Arguments and Strong Reasoning (1:41)
- Quiz: Inductive Arguments and Strong Reasoning
- 3. Inductive Arguments and Scientific Reasoning (9:41)
- Quiz: Inductive Arguments and Scientific Reasoning
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4. Identifying Premises and Conclusions
4. identifying premises and conclusions.
Argument analysis would be a lot easier if people gave their arguments in standard form, with the premises and conclusions flagged in an obvious way.
But people don’t usually talk this way, or write this way. Sometimes the conclusion of an argument is obvious, but sometimes it’s not. Sometimes the conclusion is buried or implicit and we have to reconstruct the argument based on what’s given, and it’s not always obvious how to do this.
In this lecture we’re going to look at some principles that will help us identify premises and conclusions and put natural language arguments in standard form. This is a very important critical thinking skill.
Here’s an argument:
“Abortion is wrong because all human life is sacred.”
Question: which is the conclusion?
“Abortion is wrong” ?
“All human life is sacred” ?
For most of us the answer is clear. “ Abortion is wrong” is the conclusion , and “ All human life is sacred” is the premise .
How did we know this? Well, two things are going on.
First, we’re consciously, intentionally, reading for the argument , and when we do this we’re asking ourselves, “what claim are we being asked to believe or accept, and what other claims are being offered as reasons to accept that claim?”.
Second, we recognize the logical significance of the word “because” . “Because” is what we call an indicator word , a word that indicates the logical relationship of claims that come before it or after it. In this case it indicates that the claim following it is being offered as a reason to accept the claim before it.
So, rewriting this argument in standard form, it looks like this ...
1. All human life is sacred. Therefore, abortion is wrong.
At this point we could start talking about whether this is a good argument or not, but that’s not really our concern right now. Right now we’re more concerned with identifying premises and conclusions and getting the logical structure of an argument right.
Here are some key words or phrases that indicate a CONCLUSION :
therefore, so, hence, thus, it follows that, as a result, consequently ,
and of course there are others.
This argument gives an example using “so”:
It’s flu season and you work with kids, SO you should get a flu shot.
Now, keywords like these make it much easier to identify conclusions, but not all arguments have keywords that flag the conclusion. Some arguments have no indicator words of any kind. In these cases you have to rely on your ability to analyze context and read for the argument.
Here’s a more complex argument that illustrates this point:
"We must reduce the amount of money we spend on space exploration. Right now, the enemy is launching a massive military buildup, and we need the additional money to purchase military equipment to match the anticipated increase in the enemy’s strength."
Notice that there are no indicator words that might help us flag the conclusion.
So, which claim is the conclusion of this argument?
“We must reduce the amount of money we spend on space exploration.” ?
“The enemy is launching a massive military buildup” ?
Or is it ...
“We need the additional money to purchase military equipment to match the anticipated increase in the enemy’s strength” ?
The answer is ...
“We must reduce the amount of money we spend on space exploration.”
Most people can see this just by looking at the argument for a few seconds, but from experience I know that some people have a harder time seeing logical relationships like this.
If it’s not obvious, the way to work the problem is this: for each claim asserted in the argument you have to ask yourself,
“Is this the main point that the arguer is trying to convey?”
“Is this a claim that is being offered as a reason to believe another claim?”
If it’s being offered as a reason to believe another claim, then it’s functioning as a premise . If it’s expressing the main point of the argument, what the argument is trying to persuade you to accept, then it’s the conclusion.
There are words and phrases that indicate premises too. Here are a few:
since, if, because, from which it follows, for these reasons,
And here’s an example that uses “since”:
"John will probably receive the next promotion SINCE he’s been here the longest."
“Since” is used to indicate that John’s being here the longest is a reason for thinking that he will probably receive the next promotion.
So, let’s summarize:
- Arguments in natural language aren’t usually presented in standard form, so we need to know how to extract the logical structure from the language that’s given.
- To do this, we look at each of the claims in the argument and we ask ourselves, is this the main point that the arguer is trying to convey, or is this being offered as a reason to accept some other claim?
- The claim that expresses the main point is the conclusion.
- The claims that are functioning as reasons to accept the main point are the premises.
- And finally, premises and conclusions are often flagged by the presence of indicator words. Paying attention to indicator words can really help to simplify the task of reconstructing an argument.
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Diagramming Arguments, Premise and Conclusion Indicators, with Many ExamplesAbstract: Analyzing the structure of arguments is clarified by representing the logical relations of premises and conclusion in diagram form. Many ordinary language argument examples are explained and diagrammed. “Argument” Defined
How to Analyze Simple Arguments
How to Analyze Complex Arguments
Formal arguments are evaluated by their logical structure; informal arguments are studied and evaluated as parts of ordinary language and interpersonal discourse. Statement or Proposition:How to identify the presence of an argument. [1] I conclude the dinosaurs probably had to cope with cancer. These are my reasons : [2] a beautiful lower leg bone was found in Alberta, [3] the end of the fibula was grossly malformed, and [4] this appearance closely matches osteosarcoma in humans. Since [1] the solution turns litmus paper red, [2] I conclude it is acidic, inasmuch as [3] acidic substances react with litmus to form a red color.
“[1] The types of sentences you use are quite varied. [2] I've noticed that your recent essays are quite sophisticated. [3] You have been learning much more about sentence structure.” “ Because [1] of our preoccupation with the present moment and the latest discovery, [2] we do not read the great books of the past. Because [3a] we do not do this sort of reading, and [3b] do not think it is important, [4] we do not bother about trying to learn to read difficult books. As a result , [5] we do not learn to read well at all.” [1] Statement [1] provides evidence for [2]. Next, [2] together with [3] ([3a] and [3b] being combined here as one compound statement for simplification) gives evidence for [4]. Finally, as a result of [4], statement [5] concludes with some degree of probability.
[1] John didn't get much sleep last night. [2] He has dark circles under his eyes. [3] He looks tired. [1] Studies from rats indicate that neuropeptide Y in the brain causes carbohydrate craving, and [2] galanin causes fat craving. Hence , [3] I conclude that food cravings are tied to brain chemicals [4] because neuropeptide Y and galanin are brain chemicals.
[1] The piano teacher should consider an additional study of the pipe organ. [2] As an organist. the teacher would have added income at times when she is not teaching; consequently , and for this reason [3] she would receive added publicity and prestige. Therefore , [4] she would be likely to attract additional students and additional income. Working with Premise Indicators:for since as because [* when the term means “for the reason that” but not when it means “from the cause of”] in as much as follows from after all in light of the fact assuming seeing that granted that; given that in view of as shown by; as indicated by deduced from inferred from; concluded from due to the fact that for the reason [* often mistaken for a conclusion indicator ] [2a] Reading the point of intersection of a graph depends on the accuracy with which the lines are drawn. [2b] Reading the point of intersection also depends upon the ability to interpret the coordinate of the point. [1]Thus, the graphical method for solving a system of equations is an approximation. “[3] [the mind must] obtain a little strength by a slight exertion of its thinking powers.” Working with Conclusion Indicators:thus therefore consequently hence so it follows that proves that; demonstrates that; shows that indicates that accordingly [* an indicator often missed ] implies that; entails that; follows that this means we may infer; it can be inferred that suggests that results in in conclusion for this reason; for that reason [* often mistaken for premise indicators (a conclusion follows these phrases; a premise precedes these phrases .)] “[3a] So it may well be that cancer is induced not by the original substances but [3b] [it may well be that cancer is induced] by the products of their metabolism once inside the organism.” Working with Equal Status Indicators:or [ the inclusive “or,” i.e. “ either or or both ”] and as [* when it connects similar clauses; not when it connects a result with a cause ] in addition although despite; in spite of besides though but yet however moreover nevertheless not only … but also ( and also the semicolon “;”)
Comment : Notice that statements [2] and [3] work together as a reason, so both together provide evidence for [1]. “ … [3] it depends on the indices of refraction of the lens material and [4] [it depends on] the surrounding medium.” For [1] and [2], so [3]. [1] If students were environmentally aware, they would object to the endangering of any species of animal. [2] The well-known Greenwood white squirrel has become endangered [3] as it has disappeared from the Lander campus [4] because the building of the library destroyed its native habitat. [5] No Lander students objected. [6] Thus , Lander students are not environmentally aware. as because thus
[1] If students were environmentally A ware, [ then ] they would O bject to the endangering of any species of animal. [5] No student O bjected [to the endangering of the Greenwood white squirrel]. [1] If A then O [5] Not O “[6] Thus, Lander students are not environmentally A ware,” [1] If A then O [5] Not O [6] Not A “The explanation as to why productivity has slumped since 2004 is a simple one. That year coincided with the creation of Facebook ” [11] “In The Voyage of the Dawn Treader, the ship's prow is ‘gilded and shaped like the head of a dragon with wide open mouth’ so when, a moment later, the children stare at the picture ‘with open mouths’, they are being remade in its image … The painted ocean to which Joan is drawn is ‘like a mighty animal’, a ‘wicked virile thing’. The implication in both cases is that art is not safe, and that this is why it's needed.” [emphasis mine] [12] “He asked: ‘Who are the Âdityas?’ Yâ gñ avalkys replied: ‘The twelve months of the year, and they are Âdityas, because they move along (yanti) taking up everything [ i.e. , taking up the lives of persons, and the fruits of their work] (âdadânâ h ). Because they move along, taking up everything, therefore they are called Âdityas.’”[emphasis mine] [13] Circular Argument:Links to diagramming online quizzes with suggested solutions, notes: diagramming arguments. 1. Mortimer J. Adler, How to Read a Book (New York: Simon and Schuster: 1940), 89. ↩ 2. Some English textbooks describe argumentative paragraph structure as deductive (proceeding from general to specific statements or inductive (proceeding from specific to general statements). For example, educator and rhetorician Fred Newton Scott writes: “There are two orders of progress in thought, one proceeding from the statement of a general principle to particular applications of the principle (deductive reasoning), the other proceeding from the statement of particular facts to a general conclusion from those facts (inductive reasoning). In deductive reasoning, the general principle (stated usually at the beginning) is applied in the particulars; in inductive reasoning the general principle (stated usually at the end) if inferred from the particulars, as a conclusion. In a deductive paragraph, as would be expected, the sentences applying the principle to the particular case in hand, usually follow the topic-statement, which announces the principle. In an inductive paragraph the sentences stating the particular facts usually precede the topic-statement, which gives the general conclusion.” [emphases deleted] Fred Newton Scott, Paragraph-Writing (Boston: Allyn and Bacon, 1909), 62-63. Since this distinction between induction and deduction proves faulty for many arguments, deductive arguments are now described as those that provide total support for their conclusion ( i.e. ,a they logically entail the conclusion); whereas, an inductive argument give partial support for their conclusion ( i.e. , they provide only some evidence for the conclusion.) ↩ 3. Most paragraphs have a three-part structure: introduction (often a topic sentence), body (often supporting sentences), and conclusion (often a summary statement). In argumentative writing, the conclusion of an argument is often the topic sentence or main idea of a paragraph. Consequently, the first sentence or last sentence of many argumentative paragraphs contain the conclusion. ↩ 4. René Wellek and Austin Warren, Theory of Literature (New York: Harcourt, Brace: 1956), 127. ↩ 5. Mary Wollstonecraft, Vindication of the Rights of Woman (1792 London: T. Fisher Unwin, 1891), 273. ↩ 6. Irvin D. Yalom, The Gift of Therapy (New York: Harper Perennial, 2009), 133. ↩ 7. Maxim D. Frank-Kamenetskii, Unraveling DNA trans. Lev Liapin (New York: VCH Publishers, 1993), 175. ↩ 8. Bertrand Russell, The Analysis of Mind (London: 1921 George Allen & Unwin, 1961), 40. ↩ 9. Wollstonecraft, Vindication , 175. ↩ 10. Marcus Aurelius, Meditations , trans George Long (New York: Sterling: 2006), 69. ↩ 11. Nikko Schaff, “Letters: Let the Inventors Speak,” The Economist 460 no. 8820 (January 26, 2013), 16. ↩ 12. Matthew Bevis, “What Most I Love I Bite,” in the “Review of The Collected Poems and Drawings of Stevie Smith ,” London Review of Books 38 No. 15 (28 July 2016), 19. ↩ 13. B ri hadâra n yaka-Upanishad in The Upanishads , Pt. II, trans. F. Max Müller in The Sacred Books of the East , Vol. XV, ed. F. Max Müller (Oxford: Clarendon Press, 1900), 141. ↩ Readings: Diagramming ArgumentsCarnegie Mellon University, iLogos: Argument Diagram Software and User Guide Free software cross-platform. Also, a list with links to other argument diagramming tools. Martin Davies, Ashley Barnett, and Tim van Gelder, “ Using Computer-Aided Argument Mapping to Teach Reasoning, ” in Studies in Critical Thinking , ed. J. Anthony Blair (Windsor, ON: Open Monograph Press, 2019), 131-176. Chapter outlining how to use argument mapping software in logic classes. doi: 10.22329/wsia.08.2019 Jean Goodwin, “ Wigmore's Chart Method ,” Informal Logic 20 no. 3 (January, 2000), 223-243. doi: 10.22329/il.v20i3.2278 Tree diagram method for complex argument representation and inference strength assessment for legal analysis. Mara Harrell, Creating Argument Diagrams , Carnegie Mellon University. Tutorial on identification of indicators, rewriting statements, providing missing premises, and reconstruction of arguments. (28 pp.) Dale Jacquette, “ Enhancing the Diagramming Method in Logic ,” Argument: Biannual Philosophical Journal 1 no. 2 (February, 2011), 327-360. Also here . An extension of the Beardsley diagramming method for disjunctive and conditional inferences as well as other logical structures. Michael Malone, “On Discounts and Argument Identification,” Teaching Philosophy 33 no. 1 (March, 2010), 1-15. doi: 10.5840/teachphil20103311 Discount indicators such as “but”, “however”, and “although” are distinguished from argument indicators, but help in argument identification. Jacques Moeschler, “Argumentation and Connectives,” in Interdisciplinary Studies in Pragmatics, Culture and Society , eds. Alessandro Capone and Jacob L. Mey (Cham: Springer, 2016), 653-676. John Lawrence and Chris Reed, “ Argument Mining: A Survey ,” Computational Linguistics 45 no. 4 (September, 2019), 765-818. doi: 10.1162/coli_a_00364 Review of recent advances and future challenges for extraction of reasoning in natural language. Frans H. van Eemeren, Peter Houtlosser, and Francisca Snoeck Henkemans, Argumentative Indicators in Discourse (Dordercht: Springer, 2007). Sophisticated study of indicators for arguments, dialectical exchanges, and critical discussion. doi: 10.1007/978-1-4020-6244-5 Wikipedia contributors, “ Argument Map , Wikipedia . History, applications, standards, and references for argument maps used in informal logic. (Free) Online Tutorials with DiagrammingCarnegie Mellon University, Argument Diagramming v1.5 (Open + Free) . Free online course on argument diagramming using built-in iLogos argument mapping software by Carnegie Mellon's Open Learning Initiative. (With or without registration and two weeks for completion). Harvard University, Thinker/Analytix: How We Argue . Free online course on critical thinking with argument mapping with Mindmup free diagramming software, videos, and practice exercises. (Requires registration and 3-5 hrs. to complete). Joe Lau, “ Argument Mapping ” Module A10 on the Critical Thinking Web at the University of Hong Kong. (No registration and an hour to complete). Send corrections or suggestions to philhelp[at]philosophy.lander.edu Read the disclaimer concerning this page. 1997-2024 Licensed under the Copyleft GFDL license. The GNU Public License assures users the freedom to use, copy, redistribute, and make modifications only if they allow these same terms, with or without changes, for their copies. Works for sale must link to a free copy. Arguments | Language | Fallacies | Propositions | Syllogisms | Ordinary Language | Symbolic
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COMMENTS
A better way to identify premises and conclusions is to look for indicator words. Indicator words are words that signal that statement following the indicator is a premise or conclusion. The example above used a common indicator word for a conclusion, 'so.' The other common conclusion indicator, as you can probably guess, is 'therefore.'
Some words can serve dual functions depending on context, such as 'so' which can indicate either a premise or a conclusion based on how it's used. Recognizing indicator words enhances critical thinking skills by enabling individuals to break down and evaluate arguments more effectively.
Conclusion indicators are words or phrases that signal the presence of a conclusion in an argument. They help identify the main point that the author is trying to establish, making it easier to differentiate between premises and conclusions. Recognizing these indicators is crucial for analyzing arguments effectively, as they guide the reader to understand the intended message and overall ...
Critical thinking indicators (CTIs) describe behaviors that demonstrate the knowledge, attitudes, and skills that promote critical thinking (see pages 7 and 8). They give concrete examples of what you need to observe and do to assess and improve thinking. Now used in U.S. and other countries (e.g., Canada, England, Spain, Kenya, Australia, New ...
Indicator Words In Critical Thinking. Definition. Indicator words are specific terms or phrases that signal the presence of an argument's components, such as premises and conclusions. They serve as cues to help identify the structure of reasoning within a statement, allowing one to discern which parts support a claim and which parts represent ...
However, when we're discussing critical thinking, an argument is a term used to describe something that can be far less dramatic than that. ... When an argument is being made, indicator words can ...
In this example, the word "since" is a premise indicator because what follows it is a statement that is clearly intended to be a reason for thinking that the student plagiarized (i.e., a premise). Notice that in these two cases, the premise indicators "because" and "since" are interchangeable: I could have used "because" in ...
Standard argument form is a graphical method for displaying arguments, making plain the purpose of a statement by its placement. Premises are separated, numbered, and placed above a line, and the conclusion is placed below the line. The act of inference is represented with three dots (or the word "so") placed next to the conclusion.
Download. 4. Identifying Premises and Conclusions. Argument analysis would be a lot easier if people gave their arguments in standard form, with the premises and conclusions flagged in an obvious way. But people don't usually talk this way, or write this way. Sometimes the conclusion of an argument is obvious, but sometimes it's not.
Conclusion indicators are words which often signal and precede the statement which logically follows from the reasons given. Common conclusion indicators include the following: thus ... Free online course on critical thinking with argument mapping with Mindmup free diagramming software, videos, and practice exercises. (Requires registration and ...
1. understand that a deductively valid argument is one in which it is impossible for the premises to be true and the conclusion false; 2. distinguish between the everyday sense of "valid" as "good" or "true" from its precise technical sense which is used in the context of critical thinking; 3. understand that the validity of an argument does ...
The Critical Thinking Indicators (CTIs) on pages 7 and 8 are addressed in Critical Thinking & Clinical Judgment in Nursing: A Practical Approach to Outcome-focused Thinking, 4 th Ed, and Applying Nursing Process: A Tool for Critical Thinking, 7th Ed. CTIs describe behaviors that demonstrate the knowledge, characteristics, and skills that ...
Common premise indicators include words and phrases such as 'because', 'since', 'for', and 'given that', which help signal that what follows is a supporting statement. Identifying premise indicators can enhance critical thinking skills by making it easier to evaluate the strength of arguments based on their supporting evidence.
The set of supporting and supported claims is called an argument.An argument is an attempt to prove a claim, namely a conclusion, through the use of one or more supporting claims, which are called ...
identify the premise(s) and conclusion of an argument. oThelp us do so often involves indicator words. Conclusion indicators , are words used (in our case, English) that lead us to believe that what follows is the argument's conclusion. Here are some of the most commonly used conclusion indicator words: thus therefore accordingly consequently hence
Unit 1: Introduction and Meaning Analysis. Critical thinking is a broad classification for a diverse array of reasoning techniques. In general, critical thinking works by breaking arguments and claims down to their basic underlying structure so we can see them clearly and determine whether they are rational.
This is because a complete analysis of an argument helps us to arrive at a better understanding of the meaning of the argument. The word 'analyse' means to dissect, or to lay bare. When we analyse an argument we want to lay bare the components of the argument. Differently put, we want to reveal the argument's structure.
A conclusion indicator is a word or phrase that signals the conclusion of an argument. It helps to identify the statement that follows as a result or outcome of the premises presented beforehand. These indicators guide the reader in understanding the flow of reasoning and are essential for discerning the structure of arguments, linking premises to their conclusions.
In other words, folks with low critical thinking dispositions would tend to "keep it simple" when something is really quite complicated, and think it absolute terms and categories rather than ...
The key words "critical thinking and nursing" were used to search full-text articles published from 1990 through 2009 and indexed in the CINAHL and CEPS (Chinese) databases. This step identified indicators of critical thinking in standardized inventories and framed these indicators in the context of the nursing process.
Logical Reasoning: The ability to reason logically is a cornerstone of critical thinking. Critical thinkers excel at constructing well-reasoned arguments and identifying flaws in others' reasoning. They can break down complex issues into manageable components, analyze each part systematically, and draw sound conclusions based on evidence and ...