Exercise 8.

Simplify the following.

  1. \(\neg (\neg (P \wedge \neg Q) \imp \neg(\neg R \vee \neg(P \imp R)))\text{.}\)

  2. \(\neg \exists x \neg \forall y \neg \exists z (z = x + y \imp \exists w (x - y = w))\text{.}\)

Solution.
in-context