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: p_3 <-> t. Q(i) -> t. p_3 or W(i). forall x_4: Q(x_4) or ~W(x_4).
R_1(i) -> p_3 can be inferred via the rewriting rule. p_3 -> t can be inferred via the biconditional elimination rule. t -> p_3 can be inferred via the biconditional elimination rule. forall x_4: W(x_4) -> Q(x_4) can be inferred via the universal rewriting rule.