Take all axioms of [Ackermann's set theory][1], remove the class construction axiom schema. Add the **limitation of size** axiom: $\forall X \forall Y [X \in V \land Y \subseteq V \land |Y|\leq |X| \to Y \in V]$ >Would the resulting theory prove $V$ to be a model of $\sf ZF$? [1]: https://en.wikipedia.org/wiki/Ackermann_set_theory