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_14(a_14) or w. w -> S_14(a_14). p_15 -> t_1. p_15. forall x_14: R_14(x_14) -> S_14(x_14).
t_1 can be inferred via the modus ponens rule.