Tru e fals e 12511 premises are statements truth

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TRU E FALS E
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1/25/11 Premises are statements (truth-evaluable), which bear logical relations to each other to show, by rational force, the truth of a final statement – the conclusion Premises support the conclusion – give evidence, imply, or together entail other claims The conclusions we’ll see will take the form of statements “Abortion is morally impermissible.” “We are morally obligated to do all we can to mitigate impoverishment around the world.” “No non-human animals have rights.” What is an argument?
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1/25/11 Two main types of arguments: Deductive (philosophy, mathematics, logic) Inductive (empirical sciences) Good deductive arguments start from true statements and finish by guaranteeing some new true statement Good inductive arguments start from true statements and finish by making some new statement most probably true Evaluating arguments
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1/25/11 Deductive arguments: Validity and Soundness Valid argument = IF the premises are all true, then the conclusion MUST be true P1. All sheep are controlled by aliens. P2. Edna is a sheep. C. Therefore, Edna is controlled by aliens.
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