Thread: Integer Proof

I need help with the following proof

Prove: If each of m and n is an integer, then m+n and m-n are both even if m and n are both even or both odd.

Originally Posted by noles2188

I need help with the following proof

Prove: If each of m and n is an integer, then m+n and m-n are both even if m and n are both even or both odd.

hint: even - write as , [ ], then finish.

odd - write as , [ ], then finish.