fact: Definition qinv_isequiv {A B} (f : A -> B) `{IsEquiv _ _ f} : qinv A B := (f ; (f^-1 ; (eisretr f , eissect f))).
imports: HoTT(Basics Types HProp HSet Projective TruncType Truncations Modalities.Notnot Modalities.Open Modalities.Closed BoundedSearch Equiv.BiInv Spaces.Nat Spaces.Torus.TorusEquivCircles Metatheory.Core Metatheory.FunextVarieties)