The Teleological argument (argument from design) argues that the universe is being directed towards a telos, an end purpose, and the a posteriori evidence of an apparent intelligent design in the world implies the existence of an intelligent designer, God.

A type of argument, deriving from Kant, which seeks to establish the necessary conditions of the possibility of something's being the case. For example, we have to believe that we are free when we perform an action; thus belief in freedom is a necessary condition of the possibility of action.