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: ~S_7(c). p <-> T(c). forall x_7: T(x_7) <-> S_7(x_7).
p -> T(c) can be inferred via the biconditional elimination rule. T(c) -> p can be inferred via the biconditional elimination rule. forall x_7: T(x_7) -> S_7(x_7) can be inferred via the universal biconditional elimination rule. forall x_7: S_7(x_7) -> T(x_7) can be inferred via the universal biconditional elimination rule.