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#1 Help Me ! » proof of De Morgan rules » 2009-09-08 23:46:29

serendipity
Replies: 1

Hello guys!(and sorry for my english..)

i am looking for a proof with induction at the above excercise...is at Propositional Logic...
the problem is this : (p1 ^p2...^pn) <-> ~(~p1 \/ ~p2 ...\/pn)...




thanx in advance for your help...

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