This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.

Metamath Proof Explorer

Theorem 2cnd

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

		Ref	Expression
	Assertion	2cnd	$⊢ φ \to 2 \in ℂ$

Step	Hyp	Ref	Expression
1		2cn	$⊢ 2 \in ℂ$
2	1	a1i	$⊢ φ \to 2 \in ℂ$