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Metamath Proof Explorer

Theorem nn0cn

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

		Ref	Expression
	Assertion	nn0cn	$⊢ A \in ℕ_{0} \to A \in ℂ$

Step	Hyp	Ref	Expression
1		nn0sscn	$⊢ ℕ_{0} \subseteq ℂ$
2	1	sseli	$⊢ A \in ℕ_{0} \to A \in ℂ$