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Metamath Proof Explorer

Theorem structex

Description: A structure is a set. (Contributed by AV, 10-Nov-2021)

		Ref	Expression
	Assertion	structex	$⊢ G Struct X \to G \in V$

Step	Hyp	Ref	Expression
1		brstruct	$⊢ Rel Struct$
2	1	brrelex1i	$⊢ G Struct X \to G \in V$