PHIL 1200H Lecture Notes - Lecture 16: Christine Sinclair, Justin Trudeau, Propositional Calculus
9 Dec 2016
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Deductive validity- the truth of the premises guarantees the truth of the conclusion. Inductive validity- the truth of the premises makes the truth of the conclusion likely. The truth f the premises guarantees the truth of the conclusion. The conclusion must be true if all of the premises are true. Having all true remises means the conclusion must also be true. *with deductively valid arguments, it is impossible for a reasonable person to accept all of the. If the premises are all true, the conclusion must be true premises and still reject the conclusion. If you have premises that are false, you have no good reason to accept that the (cid:272)o(cid:374)(cid:272)lusio(cid:374) is true. P1- if an animal has feathers, it can fly. Notice- the validity of the argument says nothing about the acceptability of the premises. If they were both true, the conclusion would be true. P1- if pigs can fly, then ill eat my hat.
