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 will cook. Susan is poor if and only if James is a scientist. For all x_7, if x_7 were poor, then x_7 is not cooking.
If Susan were poor, then James is a scientist. If James were a scientist, then Susan is poor. For all x_7, x_7 is not poor.