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: w_3 -> r_6. s_1 -> r_6. p_6 or p_1. p_1 -> w_3. p_6 -> s_1.
p_1 -> r_6 can be inferred via the transitivity rule. p_6 -> r_6 can be inferred via the transitivity rule.