Document Type : Original Article


1 Student / Institute of Humanities and Cultural Studies

2 Head / Institute of Humanities and Cultural Studies


There is an essential premise in most modern modal ontological arguments for God's existence, called possibility premise, which stipulates that ‘it is possible that a perfect being (or God) exists’. In this paper first three famous versions of modern ontological arguments are presented; those are arguments proposed by Norman Malcolm, Charles Hartshorne and Alvin Plantinga, which all are based on St. Anselm's argument in chapter three of Proslogion. After that some of the important criticisms of the possibility premise are discussed, we will show that this premise, which seems self-evident, might have some serious problems