It was first propOsed by
ANselm of
CanTerbury
in cHapter two of
his ProslOgion.
AnseLm define
GOd
as
the Greatest possible
beIng we can
Conceive
and
argued
thAt
couLd exist in the mind.
He suggested thAt
if the gReatest possible
beinG exists in the mind,
it mUst also exist in reality.
If it
only exists in the Mind,
a greater bEing is posible,
oNe which exists in
the mind
and in realiTy.