A Darboux function is a real-valued function "f" that has the "intermediate value property," i.e., that satisfies the conclusion of the intermediate value theorem: for any two values "a" and "b" in the domain of "f", and any "y" between "f"("a") and "f"("b"), there is some "c" between "a" and "b" with "f"("c") = "y". The intermediate value theorem says that every continuous function is a Darboux function. However, not every Darboux function is continuous; i.e., the converse of the intermediate value theorem is false.