contestada

For all integers n, if n2 is odd, then n is odd.
Use a proof by contraposition, as in Lemma 1.1

check screen shoot

For all integers n if n2 is odd then n is odd Use a proof by contraposition as in Lemma 11 check screen shoot class=
For all integers n if n2 is odd then n is odd Use a proof by contraposition as in Lemma 11 check screen shoot class=