Alvin Plantinga created a version of this argument, the original formulation of which uses the Fool from the Psalms and creates a reductio ad absurdum by holding that a "being than which nothing greater can be conceived" would not be the greatest if it existed only in the mind.
A 2010 paper by Matthews and Baker that simplified this idea by using the property of "unmediated causal powers" began a chain of responses published in Analysis. A thinker invoked the axiom that anything that is possibly necessary is necessary in a reformulation of this idea using modal logic, which was intended to correct Norman Malcolm's version of this idea. (*) Immanuel Kant criticized this idea by arguing that existence is not a predicate. Alvin Plantinga created a version of this argument, the original formulation of which uses the Fool from the Psalms and creates a reductio ad absurdum by holding that a "being than which nothing greater can be conceived" would not be the greatest if it existed only in the mind. For 10 points, identify this argument for God's existence put forth by St.Â Anselm.
A 2010 paper by Matthews and Baker that simplified this idea by using the property of "unmediated causal powers" began a chain of responses published in Analysis.
ontological argument [prompt on God's existence or similar answers]