proposition: Theorem GenMendlerIteration : iscontr (∑ h : L μF --> X, #L inF · h = ψ μF h).
proof: Proof. use tpair. - exists preIt. exact preIt_ok. - exact preIt_uniq. Defined.
imports: UniMath.Tactics.EnsureStructuredProofs UniMath.Foundations.PartD UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Limits.Initial UniMath.CategoryTheory.FunctorAlgebras UniMath.CategoryTheory.Categories.HSET.Core UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.yoneda UniMath.CategoryTheory.Adjunctions.Core