Aristotle was one of the first philosophers who spoke about and documented the idea of theism. His argument was known as the Cosmological Argument. In the Cosmological Argument, He argued that:
- Everything that exists or begins to exist has a cause.
- The universe exists, and began to exist.
- The universe must have a cause.
- The cause of the universe is God.
This serves as the basis for many arguments for the evidence in proving the existence of God, or a Supreme Being, in the theist belief system. However this is a very basic logic idea, in that it is not specific on a certain idea. As it is a basic idea, it is not very in depth and it it does not specify certain ideas.