This is the the eighteenth post in my Theories of Knowledge and Reality series. Follow the link for more on the series and for links to other entries as they appear. I've posted an earlier version of this a while ago, but the comments degenerated into a discussion of things completely unrelated to the post. That time, it was a version of my notes on this that hadn't been altered since 2001. I've decided to expand it a bit based on further study of the subject, even though I haven't taught all these issues in the course that this series is based on. I should also say that my presentation depends heavily on William Rowe's work, most importantly the short article he wrote for introductory courses that appears in Reason and Responsibility, ed. Feinberg and Shafer-Landau, with one reference to one other text I have used in that course, Jan Cover and Rudy Garns's Theories of Knowledge and Reality (abbreviated TKR).
The cosmological argument for the existence of God is one of a number of classic arguments sometimes used in conjunction with each other to establish the existence of a being with some of the characteristics generally taken to be true of God. I'm going to look at three such arguments, each contributing something different to the overall picture The cosmological argument in particular occupies a very small role in any overall picture of how some have offered argumentation in support of theism.