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Metamath Proof Explorer

Theorem ax6evr

Description: A commuted form of ax6ev . (Contributed by BJ, 7-Dec-2020)

		Ref	Expression
	Assertion	ax6evr	$⊢ \exists x y = x$

Step	Hyp	Ref	Expression
1		ax6ev	$⊢ \exists x x = y$
2		equcomiv	$⊢ x = y \to y = x$
3	1 2	eximii	$⊢ \exists x y = x$