What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_1, if x_1 plays squash, then x_1 is fast. For all x_1, x_1 will play tennis or x_1 will play squash. There is at least one x_1 for which if x_1 plays tennis, then x_1 is bored. For all x_1, if x_1 were bored, then x_1 is fast.
There is at least one x_1 for which if x_1 plays tennis, then x_1 is fast.