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: W_3(f_1) -> W(f_1). ~W_3(f_1). forall y: W(y) <-> W_3(y).
forall y: W(y) -> W_3(y) can be inferred via the universal biconditional elimination rule. forall y: W_3(y) -> W(y) can be inferred via the universal biconditional elimination rule.