úÎ Þ3      !"#$%&'()*+,-./012 non-portable experimentalEdward Kmett <ekmett@gmail.com><Fokkinga's prepromorphism a (Base t)-algebra  fixed point result  A generalized postpromorphism Fokkinga's postpromorphism a (Base t)-coalgebra seed resulting fixed point A generalized catamorphism a distributive law a (Base t)-w-algebra  fixed point a distributive law a (Base t)-w-algebra  fixed point A generalized anamorphism a distributive law a (Base t)-m-coalgebra seed a distributive law a (Base t)-m-coalgebra seed !A generalized hylomorphism "3456#789Lambek'*s lemma provides a default definition for  in terms of  and   :The dual of Lambek'+s lemma, provides a default definition for   in terms of   and  $%)A distributive for semi-mutual recursion &';()*Course-of-value iteration +,-.Mendler-style iteration /(Mendler-style course-of-value iteration 0Elgot algebras 1Elgot coalgebras:  0http://comonad.com/reader/2008/elgot-coalgebras/ 2"Zygohistomorphic prepromorphisms: &A corrected and modernized version of  Chttp://www.haskell.org/haskellwiki/Zygohistomorphic_prepromorphisms 5 <= !"#$%&'()*+,-./0123$&*+%',-  ()!#"./0123   !"#$%&'()*+,-./012>      !"#$%&'()*+,-./0123456789:;<=recursion-schemes-0.4.0.3Data.Functor.FoldableBasePrimgprepropreprogparaparacataprojectFoldablegpostpropostproapoanaembed UnfoldableFixMuNudistPara distParaThylofoldunfoldrefoldgcatagfolddistCataganagunfolddistAnaghylogrefoldrefixzygodistZygogzygo distZygoTdistApodistGApohistoghisto distHisto distGHistomcatamhistoelgotcoelgotzygoHistoPreprounfixfixTyCon fixConstr fixDataTypetoFixfromFixlambekcolambekgapoNilCons