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: exists x_14: T(x_14) or ~Q(x_14). forall x_14: P_12(x_14) <-> Q_14(x_14). forall x_14: T(x_14) -> Q_14(x_14). forall x_14: Q_14(x_14) -> T(x_14). forall x_14: ~P_12(x_14).
exists x_14: Q(x_14) -> T(x_14) can be inferred via the existential rewriting rule. forall x_14: T(x_14) <-> Q_14(x_14) can be inferred via the universal biconditional introduction rule. forall x_14: Q_14(x_14) <-> T(x_14) can be inferred via the universal biconditional introduction rule. forall x_14: P_12(x_14) -> Q_14(x_14) can be inferred via the universal biconditional elimination rule. forall x_14: Q_14(x_14) -> P_12(x_14) can be inferred via the universal biconditional elimination rule. forall x_14: ~Q_14(x_14) can be inferred via the universal biconditional elimination rule.