Use the following building blocks to assemble a proof that if m and n are integers, and mn is even, then m is even or n is even. Not all blocks belong in the proof.

a. Suppose mat m is and n is
b. By definition of Odd this means fiat is
c. We give a proof by contraposition
d. Suppose that nm is odd.
e. By definition of odd number, m= 2P + 1 some p, and n= 2q+ 1 for integer q.