What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Linda were an electrician, then Thomas is climbing a mountain. Thomas is reading a book or Linda is an electrician. If Thomas climbs a mountain, then it is windy. For all z_1, if z_1 reads a book, then z_1 is climbing a mountain.
Nothing can be inferred from these premises.