Theorem abid2

Description: A simplification of class abstraction. Commuted form of abid1 . See comments there. (Contributed by NM, 26-Dec-1993)

	Ref	Expression
Assertion	abid2	⊢ { 𝑥 ∣ 𝑥 ∈ 𝐴 } = 𝐴

Proof

Step	Hyp	Ref	Expression
1		abid1	⊢ 𝐴 = { 𝑥 ∣ 𝑥 ∈ 𝐴 }
2	1	eqcomi	⊢ { 𝑥 ∣ 𝑥 ∈ 𝐴 } = 𝐴