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: t or ~q_13. p -> t_4. p. q_13.
t_4 can be inferred via the modus ponens rule. p and q_13 can be inferred via the conjunction rule. q_13 and p can be inferred via the conjunction rule. q_13 -> t can be inferred via the rewriting rule.