Mathematics, 16.07.2021 14:00 lizdeleon248
A. ¬(P → ¬Q). b. (¬P ∨ ¬Q) → ¬(¬Q ∧ R). c. ¬((P → ¬Q) ∨ ¬(R ∧ ¬R)).
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A. ¬(P → ¬Q). b. (¬P ∨ ¬Q) → ¬(¬Q ∧ R). c. ¬((P → ¬Q) ∨ ¬(R ∧ ¬R))....
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