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34 Cards in this Set
- Front
- Back
argument
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a group of statements, one or more of which (the premises) are claimed to provide support for, or reasons to believe, one of the others (the conclusion)
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truth value
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truth or falsity of a statement i.e. the truth value of x is true
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statement
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a sentence that is either true or false or declarative sentence
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premises
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statements that set forth the reasons or evidence
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conclusion
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the statement the evidence (premise) is claimed to support or imply
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conclusion indicators
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therefore, wherefore, thus, consequently, accordingly, entails that, hence, as a result
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premise indicators
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since, as indicated by, because, for, in that, may be inferred from, as, given that
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inference
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reasoning process expressed by an argument; interchangable w/ argument
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proposition
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meaning or informational content of a statement; interchangeable with statement
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syllogistic logic
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type of logic in which the fundamental elements are terms; argument is as good or bad depending upon how the terms are arranged
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modal logic
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Aristotle- type of argument that involves concepts like possibility, necessity, belief, and doubt
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conditions required for a passage to purport or prove something
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1. at least one of the statements must claim to present evidence or reasons
2. there must be a claim that the alleged evidence supports or impliesf |
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factual claim
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at least one of the statements must claim to present evidence or reasons
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inferential claim
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there must be a claim that the alleged evidence supports or implies something
*objective feature of an argument |
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implicit inferential claim
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argument lacking indicator words
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types of nonarguments
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1. simple noninferential passages
2. expository passages 3. illustrations 4. explanations 5. conditional statements |
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types of simple noninferential passages
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1. warnings
2. pieces of advice 3. statement or belief or opinion 4. loosely associated statements 5. report |
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relationship bt conditional statements and arguments
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1. single conditional statement is not an argument
2. a conditional statements may serve as either premise or conclusion or both of an argument 3. the inferential content of a conditional statement may be reexpresed to form an argument |
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sufficient condition
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A is sufficient condition for B whenever the occurrence of A is all that is needed for the occurrence of B
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necessary condition
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B is necessary condition for A whenever A cannot occur without the occurrence of B
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deductive argument
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argument incorperating the claim that it is IMPOSSIBLE for the conclusion to be false given that the premises are true
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inductive argument
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argument incorperating the claim that is it iMPROBABLE that the conclusion be false given the premises are true
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deductive reasoning indicator words
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necesarily, certainly, absolutely, definitely
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inductive reasoning indicator words
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probably, improbably, plausible, implausible, likely, unlikely, reasonable
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deductive argument forms
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1. arguments based on mathematics NOT statistics
2. argument from definition 3. categorical syllogism 4. hypothetical syllogism 5. disjunctive syllogism |
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types of inductive arguments
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1. prediction
2. argument from analogy 3. generalization 4. argument from authority 5. argument based on signs 6. causal inference |
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logic
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organized body of knowledge or science that evaluates arguments
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explanation
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expression that purports to shed light on some event or phenomenon
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explanandum
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the statement that describes the event or phenomenon to be explained
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explanans
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statement/s that purports to do the explaining
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illustration
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an expression involving one or more examples that is intended to show what something means or how it is done
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expository passage
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kind of discourse that begins with a topic sentence followed by one or more sentences that develop the topic sentence
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particular statement
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one that makes a claim about one or more particular members of a class
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general statement
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makes a claim about all members of a class
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