What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Linda were a carpenter, then Joseph is curious. For all x_20, x_20 will not work. For all x_20, x_20 will work or x_20 is a janitor. For all x_20, if x_20 were curious, then x_20 is not a janitor.
For all x_20, x_20 is a janitor.