One noted critic of Guise theory was Plantinga, who developed his own rival theory involving a realm of abstract objects.
Cornelius Plantinga, president of Calvin Theological Seminary in Grand Rapids, Michigan from 2002 through 2011
•
Klaas Plantinga, Dutch distiller and founder of the Plantinga Distillery in Bolsward
Alvin Plantinga | Plantinga's ontological argument | Plantinga | Ontological argument#Plantinga's modal form | Klaas Plantinga | Cornelius Plantinga |
Defenders of the argument usually cite Axiom S5, as in Anselm's and Plantinga's ontological argument.
William Ramsey argued that Plantinga "overlooks the most sensible way . . . to get clear on how truth can be a property of beliefs that bestows an advantage on cognitive systems".