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_1 -> S_3(j). s_1 <-> w. forall y: ~S_3(y).
s_1 -> w can be inferred via the biconditional elimination rule. w -> s_1 can be inferred via the biconditional elimination rule.