Metamath Proof Explorer

Theorem 2reureurex

Description: Double restricted existential uniqueness implies restricted existential uniqueness with restricted existence. (Contributed by AV, 5-Jul-2023)

		Ref	Expression
	Assertion	2reureurex	$Math input error$

Proof

Step	Hyp	Ref	Expression
1		df-2reu	$Math input error$
2	1	simplbi	$Math input error$