What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 is not bored. For all x_7, x_7 is sad if and only if x_7 is bored. For all x_7, if x_7 climbs a mountain, then x_7 is sad.
For all x_7, if x_7 were sad, then x_7 is bored. For all x_7, if x_7 were bored, then x_7 is sad. For all x_7, x_7 is not sad.