What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, if y were bored, then y is cooking. For all y, if y cooks, then y is fast. For all y, if y were fast, then y is bored. There is at least one y for which if y were fast, then y is cooking.
For all y, if y were bored, then y is fast. For all y, if y cooks, then y is bored. For all y, if y were fast, then y is cooking. There is at least one y for which y is fast if and only if y will cook. There is at least one y for which y will cook if and only if y is fast.