What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? w_2 -> p_1. forall x: ~W_4(x). p_1 -> w_2. W_4(h_2) <-> p_1.
w_2 <-> p_1. p_1 <-> w_2. W_4(h_2) -> p_1. p_1 -> W_4(h_2).