Theorem wl-ralel

Description: All elements of a class are elements of the class. (Contributed by Wolf Lammen, 10-Jun-2023)

	Ref	Expression
Assertion	wl-ralel	$$⊢\forall x:Ax\in A$$

Proof

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