Theorem 4t2e8

Description: 4 times 2 equals 8. (Contributed by NM, 2-Aug-2004)

	Ref	Expression
Assertion	4t2e8	⊢ ( 4 · 2 ) = 8

Proof

Step	Hyp	Ref	Expression
1		4cn	⊢ 4 ∈ ℂ
2	1	times2i	⊢ ( 4 · 2 ) = ( 4 + 4 )
3		4p4e8	⊢ ( 4 + 4 ) = 8
4	2 3	eqtri	⊢ ( 4 · 2 ) = 8