Ontological Argument Flashcards
Anselm
11th century
Aimed to affirm beliefs and “Refute the fool who says in his heart that there’s no God” psalm 14:1
Definition of God-that which nothing greater can be achieved
Fools features
Understands the claim that God exists
Doesn’t believe in his existence
Internally inconsistent
A reductio ad absurdium
Proslogion 2
P1-God is that which nothing greater can be achieved
P2-it is different to exist in re than in intellectu
P3-better to exist in re
C-God has to exist de dicto otherwise he would not be the greatest thing
Proslogion 3
P1-God is that which nothing greater can be achieved
P2-it is different to exist necessarily than contingent
P3-better to be necessary
P4-God must exist necessarily to be greatest thing
C-God exists
Descartes
Impirical evidence=unreliable
Based on innate ideas rather than definitions
Descartes premises
P1-I exist
P2-in my mind u have the concept of a PB
P3-as an imperfect being the concept could not have come from my mind
P4-the concept of a PB must have come from one
P5-a PB exists
C-God exists
Malcolm
Argued that the nature of God meant that if he didn’t exist necessarily-he didn’t exist at all
There cannot be a merely possible necessary being as a necessary being cannot not exist
Malcolm’s premises
P1-the definition of God is that of a necessary being
P2-so though G’s existence is disputed, if he does exist, his existence is necessary
P3-it follows that G’s existence is either necessary or impossible
P4-there’s no disproof of God
C-God exists necessarily
Criticism of Malcolm
Negamount
A necessary gold mountain (uses same premises)
Something’s existence is only impossible if the concept of self contradictory or logically absurd
Guanilo’s objection
The lost island
No intrinsic maximum
And the lost island could logically exist
Strength
Deductive-the definition of God is accepted by atheists
Strength II
Anselms definition fits in with our intuition of God
Weakness
Hume-cannot define things into existence
Needs substantial proof
Weakness II
Aquinas-we don’t have an agreed definition of God
Weakness III
Kant-existence is not a predicate of things