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: R(j_4) <-> R_12(h). forall x_12: ~R_12(x_12). forall y_1: Q(y_1) <-> R(y_1).
R(j_4) -> R_12(h) can be inferred via the biconditional elimination rule. R_12(h) -> R(j_4) can be inferred via the biconditional elimination rule. forall y_1: Q(y_1) -> R(y_1) can be inferred via the universal biconditional elimination rule. forall y_1: R(y_1) -> Q(y_1) can be inferred via the universal biconditional elimination rule.