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: r_11 -> t. p_11 -> s_1. s_1 -> r_11. p_11 or ~t_2.
p_11 -> r_11 can be inferred via the transitivity rule. s_1 -> t can be inferred via the transitivity rule. t_2 -> p_11 can be inferred via the rewriting rule.