Theorem 2t1e2

Description: 2 times 1 equals 2. (Contributed by David A. Wheeler, 6-Dec-2018)

	Ref	Expression
Assertion	2t1e2	⊢ ( 2 · 1 ) = 2

Proof

Step	Hyp	Ref	Expression
1		2cn	⊢ 2 ∈ ℂ
2	1	mulid1i	⊢ ( 2 · 1 ) = 2