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9 Cards in this Set
- Front
- Back
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What is a cogent argument?
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an argument that has acceptable premises and premises, that taken together are sufficiently relevant to the conclusion.
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What does sufficiently relevant mean?
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whenever the premises if true make it at least highly likely, that the conclusion is true.
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What is a valid argument? (simple def)
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an argument that has perfect relevance.
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What is an invalid argument? (simple def)
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an argument with imperfect relevance.
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What is a gap story?
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we assume that all the premises are true and we try to produce a story about how the conclusion might still be false.
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What is a sound argument?
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when the argument is valid and it possesses only true premises.
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What is a valid argument? (technical def)
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an argument is valid if and only if it is impossible for all the premises to be true and the conclusion false.
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What is an invalid argument (technical def)
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an argument is invalid if and only if it is possible for all the premises to be true and the conclusion false.
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can an argument be valid and still be cogent?
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yes, saying something is valid means good overall.
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