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 plays tennis, then William is not reading a book. William is reading a book. Charles is bored.
James is not playing tennis can be inferred via the modus tollens rule. William is reading a book and Charles is bored can be inferred via the conjunction rule. Charles is bored and William is reading a book can be inferred via the conjunction rule.