What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? ~p_13 <-> q. u_1 and q_24. p_16 -> ~u_1. p_13 <-> p_16.
u_1. q_24. ~p_13 -> q. p_13 -> p_16. q -> ~p_13. p_16 -> p_13.