Consider the following premises. p_14 <-> t_3. p_14 -> T_3(g). forall y_4: ~T_3(y_4). Can we infer ~t_3 from them?
 From p_14 <-> t_3 we can infer t_3 -> p_14. From forall y_4: ~T_3(y_4) we can infer ~T_3(g). From t_3 -> p_14, p_14 -> T_3(g) we can infer t_3 -> T_3(g). Finally, from t_3 -> T_3(g), ~T_3(g) we can infer ~t_3. Therefore, the answer is yes.