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Metamath Proof Explorer

Theorem enref

Description: Equinumerosity is reflexive. Theorem 1 of Suppes p. 92. (Contributed by NM, 25-Sep-2004)

		Ref	Expression
	Hypothesis	enref.1	$⊢ A \in V$
	Assertion	enref	$⊢ A \approx A$

Step	Hyp	Ref	Expression
1		enref.1	$⊢ A \in V$
2		enrefg	$⊢ A \in V \to A \approx A$
3	1 2	ax-mp	$⊢ A \approx A$