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: If Joseph cooks, then Karen is sleeping. If John were a mechanic, then Linda is reading a book. If Karen sleeps, then John is a mechanic. If Linda reads a book, then Joseph is cooking.
If Joseph cooks, then John is a mechanic can be inferred via the transitivity rule. If John were a mechanic, then Joseph is cooking can be inferred via the transitivity rule. If Karen sleeps, then Linda is reading a book can be inferred via the transitivity rule. If Linda reads a book, then Karen is sleeping can be inferred via the transitivity rule.