Theorem enref

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

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

Proof

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