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 <-> R_14(a_14). forall x_14: ~R_14(x_14). w.
t -> R_14(a_14) can be inferred via the biconditional elimination rule. R_14(a_14) -> t can be inferred via the biconditional elimination rule.