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 Linda takes a plane, then Linda is working. If Linda works, then Michael is a poet. If Michael were a poet, then Linda is taking a plane.
If Linda takes a plane, then Michael is a poet can be inferred via the transitivity rule. If Linda works, then Linda is taking a plane can be inferred via the transitivity rule. If Michael were a poet, then Linda is working can be inferred via the transitivity rule.