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: There is at least one x_8 for which x_8 is a carpenter or x_8 will read a book. For all x_8, x_8 will drink water or x_8 will not read a book. For all x_8, x_8 is not a carpenter.
There is at least one x_8 for which x_8 will read a book can be inferred via the existential disjunctive syllogism rule. For all x_8, if x_8 reads a book, then x_8 is drinking water can be inferred via the universal rewriting rule.