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_2. R_16(d) <-> q_7. forall x_16: R_16(x_16) <-> S_16(x_16). ~S_16(d).
t_2 and ~S_16(d) can be inferred via the conjunction rule. ~S_16(d) and t_2 can be inferred via the conjunction rule. R_16(d) -> q_7 can be inferred via the biconditional elimination rule. q_7 -> R_16(d) can be inferred via the biconditional elimination rule. forall x_16: R_16(x_16) -> S_16(x_16) can be inferred via the universal biconditional elimination rule. forall x_16: S_16(x_16) -> R_16(x_16) can be inferred via the universal biconditional elimination rule.