Presenting Distributive Laws
Abstract
Distributive laws of a monad T over a functor F are categorical tools for specifying algebra-coalgebra interaction. They proved to be important for solving systems of corecursive equations, for the specification of well-behaved structural operational semantics and, more recently, also for enhancements of the bisimulation proof method. If T is a free monad, then such distributive laws correspond to simple natural transformations. However, when T is not free it can be rather difficult to prove the defining axioms of a distributive law. In this paper we describe how to obtain a distributive law for a monad with an equational presentation from a distributive law for the underlying free monad. We apply this result to show the equivalence between two different representations of context-free languages.
Keywords
Cite
@article{arxiv.1503.02447,
title = {Presenting Distributive Laws},
author = {Marcello M. Bonsangue and Helle Hvid Hansen and Alexander Kurz and Jurriaan Rot},
journal= {arXiv preprint arXiv:1503.02447},
year = {2017}
}