  Two kinds of arguments have been suggested to show that CORNEA is false. Some (Laraudogoitia 2000; Graham and Maitzen 2007) have argued that CORNEA violates a plausible closure principle.  Closure principles are a family of principles stating that when a proposition has some form of positive epistemic status, knowledge, say, and bears some relevant relation to some other proposition, logically entailing it, say, then that second proposition has the same epistemic status as the first. A principle popular among friends of closure is the following: If one knows p and competently deduces q from p while retaining knowledge of p, and one comes to believe q on that basis, then one knows q. These authors argue that, if skeptical theism were true, then an intuitively plausible closure principle would be false.  Others (Russell 1988; McBrayer 2009) have also argued that CORNEA is false on the grounds that it implies skepticism. The following two sections offer some detail for each of these claims.