What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? It is windy or Jennifer is not climbing a mountain. If Patricia were a writer, then Joseph is happy. Patricia is a writer or Jennifer is climbing a mountain. If Joseph were happy, then it is windy.
If Patricia were a writer, then it is windy. If Jennifer climbs a mountain, then it is windy.