Prove that if the sum of two integers is even then either they are both even, or they are both odd.

I just don't understand proofs at all..

Results 1 to 3 of 3

- December 14th 2009, 02:48 PM #1

- Joined
- Jun 2009
- Posts
- 27

- December 14th 2009, 07:57 PM #2

- December 15th 2009, 02:32 AM #3

- Joined
- Oct 2009
- Posts
- 5,563
- Thanks
- 786

I just don't understand proofs at all..