Add Parametric Morphism {R : ConstructiveReals} : CRmin
with signature (CReq R) ==> (CReq R) ==> (CReq R)
as CRmin_morph.
#[global]
Instance CRmin_morphT
: forall {R : ConstructiveReals},
CMorphisms.Proper
(CMorphisms.respectful (CReq R) (CMorphisms.respectful (CReq R) (CReq R))) (@CRmin R).

Lemma CRnegPartAbsMin : forall {R : ConstructiveReals} (x : CRcarrier R),
CRmin 0 x == (x - CRabs _ x) * (CR_of_Q _ (1#2)).