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 Thomas were a musician, then it is cloudy. If it is cloudy, then it is windy. If Robert writes a letter, then Thomas is a musician.
If Thomas were a musician, then it is windy can be inferred via the transitivity rule. If Robert writes a letter, then it is cloudy can be inferred via the transitivity rule.