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: T(x) <-> P_3(x). W_1(e) <-> q. forall x: ~T(x). forall x: P_3(x) <-> W_1(x).
W_1(e) -> q can be inferred via the biconditional elimination rule. q -> W_1(e) can be inferred via the biconditional elimination rule. forall x: T(x) -> P_3(x) can be inferred via the universal biconditional elimination rule. forall x: P_3(x) -> W_1(x) can be inferred via the universal biconditional elimination rule. forall x: P_3(x) -> T(x) can be inferred via the universal biconditional elimination rule. forall x: W_1(x) -> P_3(x) can be inferred via the universal biconditional elimination rule. forall x: ~P_3(x) can be inferred via the universal biconditional elimination rule.