Theorem 0cnd

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

	Ref	Expression
Assertion	0cnd	⊢ ( 𝜑 → 0 ∈ ℂ )

Proof

Step	Hyp	Ref	Expression
1		0cn	⊢ 0 ∈ ℂ
2	1	a1i	⊢ ( 𝜑 → 0 ∈ ℂ )