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_17(d_3) <-> p_1. ~p_1. forall x_17: Q_17(x_17) -> P_17(x_17). forall x_17: P_17(x_17) -> Q_17(x_17). p.
~p_1 and p can be inferred via the conjunction rule. p and ~p_1 can be inferred via the conjunction rule. P_17(d_3) -> p_1 can be inferred via the biconditional elimination rule. p_1 -> P_17(d_3) can be inferred via the biconditional elimination rule. ~P_17(d_3) can be inferred via the biconditional elimination rule. forall x_17: Q_17(x_17) <-> P_17(x_17) can be inferred via the universal biconditional introduction rule. forall x_17: P_17(x_17) <-> Q_17(x_17) can be inferred via the universal biconditional introduction rule.