Fibrational induction meets effects

Robert Atkey, Neil Ghani, Bart Jacobs, Patricia Johann

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

10 Citations (Scopus)
41 Downloads (Pure)

Abstract

This paper provides several induction rules that can be used to prove properties of effectful data types. Our results are semantic in nature and build upon Hermida and Jacobs’ fibrational formulation of induction for polynomial data types and its extension to all inductive data types by Ghani, Johann, and Fumex. An effectful data type μ(TF) is built from a functor F that describes data, and a monad T that computes effects. Our main contribution is to derive induction rules that are generic over all functors F and monads T such that μ(TF) exists. Along the way, we also derive a principle of definition by structural recursion for effectful data types that is similarly generic. Our induction rule is also generic over the kinds of properties to be proved: like the work on which we build, we work in a general fibrational setting and so can accommodate very general notions of properties, rather than just those of particular syntactic forms. We give examples exploiting the generality of our results, and show how our results specialize to those in the literature, particularly those of Filinski and Støvring.
Original languageEnglish
Title of host publicationFoundations of Software Science and Computational Structures
Subtitle of host publication15th International Conference, FOSSACS 2011
EditorsLars Birkedal
PublisherSpringer
Pages42-57
Number of pages16
Volume7213
DOIs
Publication statusPublished - 2012
Event15th International Conference, FOSSACS 2012, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2012 - Tallinn, Estonia
Duration: 24 Mar 20121 Apr 2012

Publication series

NameLecture Notes in Computer Science
PublisherSpringer
Volume7213
ISSN (Print)0302-9743

Conference

Conference15th International Conference, FOSSACS 2012, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2012
Abbreviated titleFOSSACS 2012
CountryEstonia
CityTallinn
Period24/03/121/04/12

Keywords

  • fibrational induction
  • polynomial data types

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  • Cite this

    Atkey, R., Ghani, N., Jacobs, B., & Johann, P. (2012). Fibrational induction meets effects. In L. Birkedal (Ed.), Foundations of Software Science and Computational Structures: 15th International Conference, FOSSACS 2011 (Vol. 7213, pp. 42-57). (Lecture Notes in Computer Science; Vol. 7213). Springer. https://doi.org/10.1007/978-3-642-28729-9_3