An Intensional Anselmian Ontological Argument
...the intensional ontological argument...john konnor...
1) for all x if x exists exclusively definitionally then x admits of more ontological greatness
2) if God does not exist exclusively definitionally then God exists in reality
c) God exists in reality
let:
r= ontological operator for status in reality
ə=limiting ontological exclusivity operator
E!x= x exists
D!x= x exists definitionally
Gx= x admits of more ontological greatness
g=(℩x)~Gx
proof:
1) (∀x)əD!x⊃Gx p
2) ~əD!g⊃rE!g p
3) əD!g AIP
4) əD!g⊃Gg 1 UI
5) Gg 3,4 MP
6) (∃x){(~Gx∧∀y(~Gy⊃x=y))∧Gx} 5TD
7) (~Ga∧∀y(~Gy⊃a=y))∧Ga 6 EI
8) (∀y(~Gy⊃a=y)∧~Ga)∧Ga 7 comm
9) ∀y(~Gy⊃a=y)∧(~Ga∧Ga) 8 assoc
10)(~Ga∧Ga) 9 simp
11) ~əD!g 3-10 IP
12) rE!g 2,11 MP
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