What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: forall y: W_2(y). forall y: W_2(y) -> W_1(y). exists y: T_2(y) -> ~W_1(y).
forall y: W_1(y) can be inferred via the universal modus ponens rule.