Theorem 2cnd

Description: The number 2 is a complex number, deduction form. (Contributed by David A. Wheeler, 8-Dec-2018)

	Ref	Expression
Assertion	2cnd	|- ( ph -> 2 e. CC )

Proof

Step	Hyp	Ref	Expression
1		2cn	|- 2 e. CC
2	1	a1i	|- ( ph -> 2 e. CC )