What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z, if z reads a book, then z is curious. For all z, z is not a scientist. There is at least one z for which if z were curious, then z is reading a book. For all z, if z were curious, then z is a scientist.
For all z, z is not curious. For all z, if z reads a book, then z is a scientist. There is at least one z for which z is curious if and only if z will read a book. There is at least one z for which z will read a book if and only if z is curious.