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Metamath Proof Explorer

Theorem rpex

Description: The positive reals form a set. (Contributed by Glauco Siliprandi, 11-Oct-2020)

		Ref	Expression
	Assertion	rpex	$⊢ ℝ^{+} \in V$

Step	Hyp	Ref	Expression
1		reex	$⊢ ℝ \in V$
2		rpssre	$⊢ ℝ^{+} \subseteq ℝ$
3	1 2	ssexi	$⊢ ℝ^{+} \in V$