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Philosophy
Question | Answer |
---|---|
Logic | easoning conducted or assessed according to strict principles of validity |
rhetoric | The art of effective or persuasive speaking or writing. |
statement | a declarative sentence. truth-value, can be true or false |
truth value | either of the values, true or false, that may be taken by a statement |
argument | a series of statements provided as support for another statement (conclusion) |
Premise(s) | a collective series of statements to establish a definite proposition |
conclusion | the summing up of an argument |
inference (inferential claim) | the process of reasoning from one set of principles to another, as in an argument |
form | contains logical relationship between logic and conclusion |
content | what the argument is about, the "meat" of the argument |
deductive argument | if premise is true, conclusion must necessarily be true too |
valid argument | the conclusion does indeed follow from premise |
sound argument | if the argument is valid AND all the premises, and conclusion, are true. |
inductive argument | if the premise is true, conclusion is probably true |
strong argument | the premise claim to provide strong |
content | what the argument is about, the metaphorical tofu of the argument |
deductive argument (deduction) | an instance of reasoning from one principle to another in accord with accepted rules of inference. Sometimes defined more narrowly as the inference from a general premise to a particular conclusion by means of a syllogism |
valid argument (validity) | said of an argument that correctly follows agreed-upon rules of inference. Always applies to arguments, not statements |
sound argument (soundness) | a good argument; a deductive argument that is valid and has true premises |
inductive argument (induction) | the process of inferring general conclusions (for example, ("All swans are white") from a sufficiently large sample of particular observations ("This swan is white, that swan is white, and that one, and that one, and that one...") |
strong argument (strength) | an inductive argument whose evidence makes the truth of the conclusion highly probable |
cogent argument (cogency) | persuasive relevance |
fallacy (formal and informal) | an invalid argument |
inconsistency | not staying the same throughout; having self-contradictory elements |
incoherence | lacking coherence; not fitting together in an orderly or logically agreeable fashion. Using fancy jargon that has no precise meaning may be a source of incoherence. So is a mere list of random beliefs, without any order or logic to hold them together. |
paradox | a self-contradictory or seemingly absurd conclusion based on apparently good arguments |
tautology | a trivially true statement, or a statement that is necessarily true by virtue of its form |
begging the question | assuming the truth of the point at issue in a question, for example, "How do I know God would not deceive me?" "Because the natural light of reason with which he endowed me tells me so." |
ad hominem attack | an argument aimed at criticizing the individual but ignoring the issue completely |
counterexample method | to argue against inductive generalizations |