What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, x_8 will cook if and only if x_8 is fast. For all x_8, if x_8 were happy, then x_8 is fast. For all x_8, x_8 will cook or x_8 is happy.
For all x_8, if x_8 cooks, then x_8 is fast. For all x_8, if x_8 were fast, then x_8 is cooking.