Metamath Proof Explorer


Theorem 8t2e16

Description: 8 times 2 equals 16. (Contributed by Mario Carneiro, 19-Apr-2015)

Ref Expression
Assertion 8t2e16 8 2 = 16

Proof

Step Hyp Ref Expression
1 8cn 8
2 1 times2i 8 2 = 8 + 8
3 8p8e16 8 + 8 = 16
4 2 3 eqtri 8 2 = 16