What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: Jennifer is not an electrician. For all y, y will read a book if and only if y is an electrician.
For all y, if y reads a book, then y is an electrician can be inferred via the universal biconditional elimination rule. For all y, if y were an electrician, then y is reading a book can be inferred via the universal biconditional elimination rule.