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: S_16(a) and p_1. forall x_16: R_16(x_16) <-> S_16(x_16).
S_16(a) can be inferred via the simplification rule. p_1 can be inferred via the simplification 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.