Section 9.5

Section 9.5 - • 1 They are materially equivalent and •...

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Section 9.5 Jupiter is larger than earth if and only if ‘iff’ Tokyo is the capital of Japan T iff T Material equivalants have no intrinsic relationship LA is west of NYC iff NYC is east of LA If first side false, second side has to be false Two statements are logically equivalent if:
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Unformatted text preview: • 1. They are materially equivalent and • 2. They are equivalent in meaning and/or • 3. The statement of their material equivalence is a tautology p ~~p p ~p ~~p p ~~p T F T T F T F T Tautological biconditional T...
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This note was uploaded on 03/16/2011 for the course PHIL 045 taught by Professor Hopper during the Fall '07 term at GWU.

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