Theorem zcnd

Description: An integer is a complex number. (Contributed by Mario Carneiro, 28-May-2016)

	Ref	Expression
Hypothesis	zred.1	⊢ ( 𝜑 → 𝐴 ∈ ℤ )
Assertion	zcnd	⊢ ( 𝜑 → 𝐴 ∈ ℂ )

Proof

Step	Hyp	Ref	Expression
1		zred.1	⊢ ( 𝜑 → 𝐴 ∈ ℤ )
2	1	zred	⊢ ( 𝜑 → 𝐴 ∈ ℝ )
3	2	recnd	⊢ ( 𝜑 → 𝐴 ∈ ℂ )