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ajprincess
Group Title
plzz help.
How do I prove p∧(pvq)=p using laws of algebra of propositions
 2 years ago
 2 years ago
ajprincess Group Title
plzz help. How do I prove p∧(pvq)=p using laws of algebra of propositions
 2 years ago
 2 years ago

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JamesJ Group TitleBest ResponseYou've already chosen the best response.1
Do you have this theorem? Let A(x) be a statement involving x. If ~x ^ A(x) is always false, then A(x) = x. If so, then notice ~p ^ p ^ (pvq) = FALSE, hence p ^ (pvq) = p. Another way is ....
 2 years ago

JamesJ Group TitleBest ResponseYou've already chosen the best response.1
p∧(pvq) = (p^p) v (p^q) = p v (p ^ q), because p^p = p = p , because if p is false then both p and p^q are false.
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
pvq would have to be = 1
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
1/vq=p ^ that is not a :P
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.0
Thanxxx a lott.
 2 years ago
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