This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.

Metamath Proof Explorer

Theorem ensymi

Description: Symmetry of equinumerosity. Theorem 2 of Suppes p. 92. (Contributed by NM, 25-Sep-2004)

		Ref	Expression
	Hypothesis	ensymi.2	$⊢ A \approx B$
	Assertion	ensymi	$⊢ B \approx A$

Step	Hyp	Ref	Expression
1		ensymi.2	$⊢ A \approx B$
2		ensym	$⊢ A \approx B \to B \approx A$
3	1 2	ax-mp	$⊢ B \approx A$