Consider the following premises. forall x_15: P_15(x_15) or ~Q_10(x_15). forall x_15: Q_10(x_15). forall x_15: P_15(x_15) <-> W(x_15). Can we infer forall x_15: W(x_15) or T(x_15) from them?
 From forall x_15: P_15(x_15) <-> W(x_15) we can infer forall x_15: P_15(x_15) -> W(x_15). From forall x_15: P_15(x_15) or ~Q_10(x_15) we can infer forall x_15: Q_10(x_15) -> P_15(x_15). From forall x_15: Q_10(x_15) -> P_15(x_15), forall x_15: Q_10(x_15) we can infer forall x_15: P_15(x_15). From forall x_15: P_15(x_15) -> W(x_15), forall x_15: P_15(x_15) we can infer forall x_15: W(x_15). Finally, from forall x_15: W(x_15) we can infer forall x_15: W(x_15) or T(x_15). Therefore, the answer is yes.