Recent content by Nuha22

[FONT="Times New Roman"][SIZE="4"] Thank you all , but i have solved it ^^ ~p ^ (~q ^ r) v (q ^ r) v (p ^ r) ≡ r 1- rearrange it: [~p ^ (p ^ r) ] v (~q ^ r) v (q ^ r) ≡ r [ (~p ^ p) ^ (~p ^ r) ] v (~q ^ r) v (q ^ r) ≡ r [F ^ (~p ^ r) ] v (~q ^ r) v (q ^ r) ≡ r F v (~q ^ r) v...

[SIZE="4"][FONT="Times New Roman"] show that : ~p ^ (~q ^ r) v (q ^ r) v (p ^ r) ≡ r when i made the truth table of course they were equivalent.. but i don't know what I'm doing wrong ! the end is always T "true" when i try to prove it logically... Please help !