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: t_2 <-> W(a_10). forall x: ~W(x). p_1 -> t_2.
t_2 -> W(a_10) can be inferred via the biconditional elimination rule. W(a_10) -> t_2 can be inferred via the biconditional elimination rule.