fact: Definition isexact_purely_O {O : Modality} {F X Y : pType} (i : F ->* X) (f : X ->* Y) `{IsExact purely _ _ _ i f} : IsExact O i f.
imports: Basics Types SuccessorStructure WildCat Pointed Modalities.Identity Modalities.Descent Truncations HFiber ObjectClassifier