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 x_15, x_15 is a musician or x_15 will not read a book. For all x_15, x_15 will read a book. If David were a musician, then it is windy.
For all x_15, if x_15 reads a book, then x_15 is a musician can be inferred via the universal rewriting rule.