fact: Definition InFinEnumC (x:X) (l:list X) : Prop := FinSubset_ball 0 x l.
imports: CoRN.model.totalorder.QposMinMax CoRN.metric2.Hausdorff CoRN.logic.Classic CoRN.stdlib_omissions.List CoRN.metric2.Classification CoRN.metric2.Complete CoRN.metric2.Prelength