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Metamath Proof Explorer

Theorem ralel

Description: All elements of a class are elements of the class. (Contributed by AV, 30-Oct-2020)

		Ref	Expression
	Assertion	ralel	$⊢ \forall x \in A x \in A$

Step	Hyp	Ref	Expression
1		id	$⊢ x \in A \to x \in A$
2	1	rgen	$⊢ \forall x \in A x \in A$