The the-identity-unary-scalar-function-for-domain is a scalar function which has a range = 1 for the exact-domain ?domain; f(x) = 1 forall x in ?domain.
(=> (The-Identity-Unary-Scalar-Function-For-Domain ?Domain ?F) (And (Subclass-Of ?Domain Scalar-Quantity) (Exact-Domain ?F ?Domain) (Forall (?T) (=> (Instance-Of ?T ?Domain) (= (Value ?F ?T) Identity-Scalar)))))