which counterexample for the following conjecture?

0 ⤊

which counterexample for the following conjecture?

conjecture: If the sum of two intergers is even, then both the intergers are even.

a. 14+9=23
b. 6+10=16
c. 3+9=12
d. none of theese

thanks 4 the help

2007-10-23 06:47:00 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

2007-10-23 07:38:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋

C. In that example, the If part is true but the Then part is false. That's what's needed to be a counterexample.

2007-10-24 02:10:53 · answer #2 · answered by Curt Monash 7 · 0⤊ 0⤋

2007-10-23 06:54:07 · answer #3 · answered by fcas80 7 · 0⤊ 0⤋