Logic Flashcards

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Logic

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The science and art of reasoning well.

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Formal Logic

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The science and art of proper modes of reasoning.

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Informal Logic

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The science and art of operations of thinking that are indirectly related to reasoning.

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Term

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A concept expressed precisely in words.

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Proposition

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A statement that affirms or denies something and is therefore either true or false.

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Argument

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A set of propositions in which one proposition (the conclusion) is affirmed on the basis of the others (the premises).

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Premise

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A proposition that provides evidence or support for the conclusion of an argument.

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Conclusion

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The proposition that is affirmed or denied based on the premises.

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Inference

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The act of deriving a conclusion from premises.

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Valid Argument

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An argument in which the conclusion logically follows from the premises.