Theorem nfel2

Description: Hypothesis builder for elementhood, special case. (Contributed by Mario Carneiro, 10-Oct-2016)

	Ref	Expression
Hypothesis	nfeq2.1	$$⊢\underset{\_}{Ⅎ}xB$$
Assertion	nfel2	$$⊢ℲxA\in B$$

Proof

Step	Hyp	Ref	Expression
1		nfeq2.1	$$⊢\underset{\_}{Ⅎ}xB$$
2		nfcv	$$⊢\underset{\_}{Ⅎ}xA$$
3	2 1	nfel	$$⊢ℲxA\in B$$