fact: Record CField : Type := {cf_crr :> CRing; cf_rcpcl : forall x : cf_crr, x [#] [0] -> cf_crr; cf_proof : is_CField cf_crr cf_rcpcl; cf_rcpsx : forall x y x_ y_, cf_rcpcl x x_ [#] cf_rcpcl y y_ -> x [#] y}.
imports: CoRN.algebra.CRings