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 James were a soldier, then it is sunny. If it is sunny, then it is snowing. James is not a soldier. If it snows, then James is a soldier.
It is not snowing can be inferred via the modus tollens rule. If James were a soldier, then it is snowing can be inferred via the transitivity rule. If it is sunny, then James is a soldier can be inferred via the transitivity rule. If it snows, then it is sunny can be inferred via the transitivity rule.