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 -> p_1. s <-> P(c). forall x_3: ~P(x_3).
s -> P(c) can be inferred via the biconditional elimination rule. P(c) -> s can be inferred via the biconditional elimination rule.