Theorem reex

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

	Ref	Expression
Assertion	reex	⊢ ℝ ∈ V

Proof

Step	Hyp	Ref	Expression
1		cnex	⊢ ℂ ∈ V
2		ax-resscn	⊢ ℝ ⊆ ℂ
3	1 2	ssexi	⊢ ℝ ∈ V