Consider the following premises. forall x_7: T_1(x_7) <-> S_7(x_7). q -> T_1(h_1). S_7(h_1) or q. Can we infer T_1(h_1) from them? If possible, name the inference rules being used at each step.
 From forall x_7: T_1(x_7) <-> S_7(x_7) we can infer T_1(h_1) <-> S_7(h_1) via universal instantiation. From T_1(h_1) <-> S_7(h_1) we can infer S_7(h_1) -> T_1(h_1) via biconditional elimination. Finally, from S_7(h_1) -> T_1(h_1), q -> T_1(h_1), S_7(h_1) or q we can infer T_1(h_1) via disjunction elimination. Therefore, the answer is yes.