Metamath Proof Explorer


Theorem 6t2e12

Description: 6 times 2 equals 12. (Contributed by Mario Carneiro, 19-Apr-2015)

Ref Expression
Assertion 6t2e12 6 2 = 12

Proof

Step Hyp Ref Expression
1 6cn 6
2 1 times2i 6 2 = 6 + 6
3 6p6e12 6 + 6 = 12
4 2 3 eqtri 6 2 = 12