got stuck on the second part of this question. show that P Λ Q ≡ (P l Q)l(P l Q) ≡ ~((P l Q)Λ(P l Q)) ≡~ (P l Q) ≡ ~(~(P l Q) ≡ P Λ Q use part 1 as example to write P Λ (~Q ∨ R) using only Sheffer stokes?
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Originally Posted by demarkus got stuck on the second part of this question. use part 1 as example to write P Λ (~Q ∨ R) using only Sheffer stokes? This is a real mess. We use I hope this helps.
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