fact: Definition iscomplex_cancelL {F X Y Y' : pType} (i : F ->* X) (f : X ->* Y) (e : Y <~>* Y') (cx : IsComplex i (e o* f)) : IsComplex i f.
imports: Basics Types SuccessorStructure WildCat Pointed Modalities.Identity Modalities.Descent Truncations HFiber ObjectClassifier