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 John were bored, then Sarah is a cashier. For all x_10, if x_10 were a writer, then x_10 is bored. If Sarah were a cashier, then it is raining.
If John were bored, then it is raining can be inferred via the transitivity rule.