Theorem nn0cn

Description: A nonnegative integer is a complex number. (Contributed by NM, 9-May-2004)

	Ref	Expression
Assertion	nn0cn	⊢ ( 𝐴 ∈ ℕ0 → 𝐴 ∈ ℂ )

Proof

Step	Hyp	Ref	Expression
1		nn0sscn	⊢ ℕ0 ⊆ ℂ
2	1	sseli	⊢ ( 𝐴 ∈ ℕ0 → 𝐴 ∈ ℂ )