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LOGIC FUN

Started by ?????, November 03, 2010, 06:21:27 PM

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?????

November 04, 2010, 04:25:57 PM #45
Quote from: IKANAIDE on November 04, 2010, 09:42:06 AM
No dogs are cats
No cats are dogs
Therefore all dogs are dogs.
hocuspocus;


Wrong because you can have a conclusion from 2 negative premises (2 premises say something is not).
Die for Dethklok

ikanaide

November 04, 2010, 04:27:16 PM #46
Quote from: TheSequel on November 04, 2010, 04:25:57 PM
Wrong because you can have a conclusion from 2 negative premises (2 premises say something is not).

I tried  :(

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