Theorem nfexa2

Description: An inner universal quantifier's variable is bound. (Contributed by SN, 11-Feb-2026)

	Ref	Expression
Assertion	nfexa2	$$⊢Ⅎx\exists y\forall x\phi$$

Proof

Step	Hyp	Ref	Expression
1		hbe1a	$$⊢\exists x\forall x\phi \to \forall x\phi$$
2	1	nfexhe	$$⊢Ⅎx\exists y\forall x\phi$$