Consider the following premises. forall x_11: ~P_11(x_11) or R_11(x_11). forall x_11: ~P_8(x_11). forall x_11: P_8(x_11) <-> Q_11(x_11). forall x_11: P_11(x_11) or Q_11(x_11). Can we infer forall z_2: R_11(z_2) from them?
We cannot infer that from the premises. Therefore the answer is no.