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 x_14: ~Q_10(x_14). u_2 <-> Q(j_2). forall x_14: R_14(x_14) -> Q_10(x_14). forall x_14: Q_14(x_14) -> R_14(x_14). forall x_14: Q(x_14) -> Q_14(x_14).
u_2 -> Q(j_2) can be inferred via the biconditional elimination rule. Q(j_2) -> u_2 can be inferred via the biconditional elimination rule. forall x_14: ~R_14(x_14) can be inferred via the universal modus tollens rule. forall x_14: Q_14(x_14) -> Q_10(x_14) can be inferred via the universal transitivity rule. forall x_14: Q(x_14) -> R_14(x_14) can be inferred via the universal transitivity rule.