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: For all z_3, z_3 is not a carpenter or z_3 will play tennis. Richard is not playing tennis or it is cold. Richard is not a soldier or it is windy. For all z_3, z_3 is a carpenter or z_3 is a soldier.
For all z_3, z_3 is a soldier or z_3 will play tennis can be inferred via the universal resolution rule.