Consider the following premises. forall x_13: P_13(x_13) or Q_10(x_13). forall x_5: Q_13(x_5) -> S_5(x_5). forall x_13: P_13(x_13) <-> Q_13(x_13). forall x_13: Q_10(x_13) -> Q_13(x_13). Can we infer ~t_2 from them?
We cannot infer that from the premises. Therefore the answer is no.