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_1 or W(j_1). forall y: P(y) <-> W(y). ~P(j_1).
~W(j_1) -> w_1 can be inferred via the rewriting rule. forall y: P(y) -> W(y) can be inferred via the universal biconditional elimination rule. forall y: W(y) -> P(y) can be inferred via the universal biconditional elimination rule.