Can Creationism and Evolutionism co-exist?

Obviously things cannot change (evolve) until they exist, and material things cannot exist without an origin. The universe therefore must have had an origin, therefore must have had a pre-existing cause that was not part of the universe, which therefore must have existed irrelevant of matter, energy, time and space. Since we know the universe was created, and we know that biological evolution is a natural process within that creation, therefore they DO in fact co-exist. Truth cannot conflict with truth.