Theorem recn

Description: A real number is a complex number. (Contributed by NM, 10-Aug-1999)

	Ref	Expression
Assertion	recn	$$⊢A\in ℝ\to A\in ℂ$$

Proof

Step	Hyp	Ref	Expression
1		ax-resscn	$$⊢ℝ\subseteq ℂ$$
2	1	sseli	$$⊢A\in ℝ\to A\in ℂ$$