What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_11 for which x_11 is bored or x_11 will sleep. For all x_11, x_11 is a mechanic. For all x_11, if x_11 were bored, then x_11 is not a mechanic.
For all x_11, x_11 is not bored.