fact: Definition fracture_unglue_isretr `{Univalence} (BCf : { B : Type_ O1 & { C : Type_ O2 & C -> O2 B }}) : fracture_unglue (fracture_glue_uncurried BCf) = BCf.
imports: HoTT.Basics HoTT.Types Extensions Limits.Pullback Modality Lex Open Closed Nullification