Consider the following premises. s <-> Q_17(a_14). forall x_17: P_17(x_17) <-> Q_17(x_17). forall x_17: ~P_17(x_17). Can we infer ~s or q_4 from them?
 From forall x_17: P_17(x_17) <-> Q_17(x_17), forall x_17: ~P_17(x_17) we can infer forall x_17: ~Q_17(x_17). From forall x_17: ~Q_17(x_17) we can infer ~Q_17(a_14). From s <-> Q_17(a_14), ~Q_17(a_14) we can infer ~s. Finally, from ~s we can infer ~s or q_4. Therefore, the answer is yes.