Theorem reex

Description: The real numbers form a set. See also reexALT . (Contributed by Mario Carneiro, 17-Nov-2014)

	Ref	Expression
Assertion	reex	$$⊢ℝ\in \mathrm{V}$$

Proof

Step	Hyp	Ref	Expression
1		cnex	$$⊢ℂ\in \mathrm{V}$$
2		ax-resscn	$$⊢ℝ\subseteq ℂ$$
3	1 2	ssexi	$$⊢ℝ\in \mathrm{V}$$