Simplification Math Example 3

Solution

1. 1
   By the law of double negation: $\neg(\neg p) \equiv p$.
2. 2
   Verify: if $p = T$, then $\neg p = F$, then $\neg(\neg p) = T = p$. If $p = F$, then $\neg p = T$, then $\neg(\neg p) = F = p$.