miniKanren.org

Twitter: @miniKanren Github: @miniKanren Google Group: miniKanren IRC: irc://irc.libera.chat/minikanren
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What is miniKanren?

miniKanren is a family of Domain Specific Languages for logic programming.

The name kanren comes from a Japanese word (関連) meaning "relation".

The core miniKanren language is very simple, with only three logical operators and one interface operator.
The core language, using Scheme as the host language, is described in this short, interactive tutorial.

miniKanren has been implemented in a growing number of host languages, including Scheme, Racket, Clojure,
Haskell, Python, JavaScript, Scala, Ruby, OCaml, and PHP, among many other languages.

miniKanren is designed to be easily modified and extended; extensions include Constraint Logic Programming,
probabilistic logic programming, nominal logic programming, and tabling.

A detailed discussion of the differences between miniKanren and Prolog can be found here.

miniKanren Workshops and other Meetings

Seventh miniKanren workshop at ICFP/SPLASH 2025
Sixth miniKanren workshop at ICFP 2024 (Proceedings) (Workshop Videos)
Fifth miniKanren workshop at ICFP 2023 (Proceedings) (Workshop Videos)
Fourth miniKanren workshop at ICFP 2022 (Program) (Workshop Videos)
Third miniKanren workshop at ICFP 2021 (Proceedings) (Workshop Videos)
Second miniKanren workshop at ICFP 2020 (Proceedings) (Workshop Videos)
First miniKanren workshop at ICFP 2019 (Proceedings)
miniKanren confo at Clojure/West 2013

The Book

Daniel P. Friedman, William E. Byrd, Oleg Kiselyov, and Jason Hemann
The Reasoned Schemer, Second Edition
The MIT Press, Cambridge, MA, 2018

Source code from the book

The Reasoned Schemer, Second Edition front cover

miniKanren Online Uncourse (via Hangouts on Air)

Will Byrd has organized several weekly miniKanren uncourses. Participants show off miniKanren projects, talk about miniKanren implementation, and do live coding/live research. A link to each week's hangout is posted to the miniKanren uncourse mailing list.

Recordings of previous uncourse hangouts.

Implementations

Scheme

miniKanren-with-symbolic-constraints
miniKanren with extensions for symbolic constraint solving. Includes compatibility files for Racket and various Scheme implementations.

microKanren with temporal logic programming
Related to an earlier, similar implementation

microKanren
A minimal miniKanren implementation, as described in the 2013 Scheme Workshop paper

microKanren implementation using Martelli-Montanari unification algorithm

microKanren w/simple complete search
A modified/improved microKanren implementation, as described in the 2016 DLS paper.

alphaKanren
miniKanren extended with nominal logic programming, as described in the 2007 Scheme Workshop paper.

probKanren
Research prototype of miniKanren with probabilistic inference.

chicken-miniKanren
miniKanren implementation for chicken scheme

gerbilog
gerbiKanren
miniKanren implementations for gerbil scheme

microKanren-sagittarius
miniKanren implementation for R7RS sagittarius scheme 0.6.0 based on (microKanren) with the =/= operation added.

rKanren
miniKanren with guided search, as described in the 2013 Scheme Workshop paper.

miniKanren in guile-log, a Guile Scheme library.

bkanren
miniKanren with constraint extensions that runs under Bigloo Scheme.
Fork: bkanren

miniKANREN R7RS

CLP(SMT) miniKanren

staged miniKanren
explorations of multi-stage logic programming in miniKanren

Static Kanren
A variant of miniKanren which returns better answers

ykanren

amk on S9fes

semiKanren
Logic programming using semiunification for R-ASUP instances

slpKanren
Stochastic Logic Programs (SLP) style probabilistic logic programming in miniKanren. (Deprecated--please see probKanren instead.)

sokuza-kanren
Oleg Kiselyov's minimal implementation of logic programming.

Racket

miniKanren-with-symbolic-constraints
miniKanren with extensions for symbolic constraint solving. Includes compatibility files for Racket and various Scheme implementations.

cKanren
miniKanren extended with Constraint Logic Programming (CLP); an improved version of the system described in the 2011 Scheme Workshop paper.

Racket-miniKanren
vanilla miniKanren Racket port

recursive miniKanren
recursive miniKanren implementation in Racket.

zKanren
cKanren with fair conjunction

Datalog in miniKanren

racket qkanren

alphaKanren revisited

dbKanren

roxanren
Experimental fusion of miniKanren and Rosette

Clojure

core.logic
(core.logic cheatsheet, courtesy of Benjamin Peter)

A literate Clojure implementation of microKanren.
Annotated source code.

async-mu-kanren
Proof-of-concept implementation of muKanren using CSP (core.async)

rank Kanren
rKanren extension of core.logic

Eleusis

maikurokanren

yaukanren

Common Lisp

cl-kanren-trs

cl-microkanrens

mini-kanren

mu-kanren

sī-Kanren

Kanren-Fset (Fset collection library support for cl-kanren-trs)

Coq

miniKanren-coq

Crystal

crystal-kanren

Dart

dmicrokanren

logic.dart

Dylan

miniKanren-Dylan

Elixir

ExKanren

exo logos

Elm

elm-microKanren

Another elm-microKanren

microKanren
Project homepage for this Elm implementation of the uKanren language.

Emacs Lisp

Reazon

Erlang

erlKanren

lolkanren_erlang

mukanren

Extempore

mini-over-micro-extempore

F#

FicroKanSharp

logic
A logic programming library for F#

MiniKanren
An attempted implementation of MiniKanren in F#.

Go

gologic

gominikanren

ukanren-go

kanren

Groovy

groovy-logic

Haskell

kanrens

Molog

HaskellKanren (HK)

MiniKanrenT

featherweight

hKanren

HKanren

Haskell microKanren with miniKanren extensions

HOuKanren
A twist to uKanren to support Higher-Order Relational Programming.

Khaaaaaaanren!

DS-Kanren
An alternative version adapted to use Streamly
An adaptation written as a Haskell EDSL

MicroKanren.hs

mu-kanren

ukanren

uKanren

MicroKanren.lhs

micro-kanren

hasKanren

negation kanren

hKanren

microKanren-demo
μKanren in Haskell 98.

HOL Light

kanren-light

Hy

HypoKanren

Hywaii

Adderall

Idris

idris microKanren

ikanren

microKandris

J

Microkanren in J
Supersedes an older version.

Java

mk.java
microKanren in Java.

miniKanren4j

Archelogic

java8kanren
miniKanren in Java 8.

Java miniKanren

JavaScript

veneer
Browser based miniKanren editor and REPL, with constraints.
GitHub repo

microScopeKanren
A JavaScript implementation of microKanren with a focus on inspecting programs as they run.
Example, vizualizing appendo

mu-kanren
A step-by-step MicroKanren evaluator.
GitHub repo

Kanrens

microJSKanren

lolkanren

jolic

node-kanren

microKanren JS

uKanren

microKanren

mk.js

ramo

ramda-logic

reason.js

logic.js

rlg

SebuKanren

Julia

MuKanren.jl

Lil Kanren

MiniKanren

yet another microKanren in Julia

Kotlin

KotlinKanren

kanren

LogikalDB

Lisp Flavored Erlang

mkr

Lua

lua-ukanren

miniKanren.lua

Mímir experimental rules engine

mímirKanren

miniKanren

micro-in-mini

muko

ML

LatticeKanren

ml-mukanren

microKanren-SML

sml-kanren

Moxie

kanren.mox

Nu

minikanren-nu

OCaml

OCanren
Statically typed embedding of miniKanren into Objective Caml.

kanren

minikanren-ocaml

Logical

Perl

Perl-miniKanren

PHP

reasoned-php

php-microKanren

Pony

pony-logic
Related to an earlier project microKanren-pony

pony-kanren

Prolog

microkanren-prolog
A Prolog implementation of microKanren.

miniKanren.pl
MiniKanren in Lisp in Prolog. Accompanies the Technical Interview

Python

kanren

kanrens

pykanren

pythological

LogPy

miniKANREN Python

microkanrenpy

microKanren

Another microkanren

microkanren.py

microkanren
µKanren with support for disequality and finite domain constraints, and an extendable constraint system.

Pure

pure

Reason

Tiny Karen

Ruby

mini_kanren

micro_kanren

miniKanren

MiniKanren

kanren
A Ruby implementation to accompany Hello, declarative world

mini_kraken

Rust

rust-kanren

rskanren

kanren

mu-kanren

Tributary

Very simple uKanren implementation

mukan

ukanren-rs

miniKANREN

Canrun
A Rust implementation described in Announcing Canrun

proto-vulcan

Scala

scalogno

Microkanren in Scala

minikanren-scala

minikanren-scala

sKanren

mukanren

kanren (Sokuza-kanren in Scala)

Shen

microKanren-shen

shen-minikanren

Smalltalk

microkanren-pharo
Smalltalk Hub link to microkanren-pharo

microkanrenst

SmallKanren

How to implement microKraren in Pharo

Swift

Logician

SwiftKanren

SwiftyKanren

miniKanren.swift

Typescript

async-kanren

microKanren.ts

microKanren

Typescript MicroKanren

Zig

kanren.zig

Projects using miniKanren or core.logic

miniKanren

Barliman
Barliman is a prototype "smart editor" that performs real-time program synthesis to try to make the programmer's life a little easier.

minimips, a minikanren mips assembler/disassembler.

rewrite-rule completion in miniKanren

Luke McCulloch's Interval constraint programming dissertation work

A relational SKI combinator calculus

Symbolic manipulation of PyMC models, graphs

Mkanren: Relational/Kanren Automata theory

mediKanren
Project for reasoning over the SemMedDB knowledge base, using miniKanren + heuristics

Specializer for microKanren

uKanren transformations

miniKanren as an extensible EDSL

core.logic

SMUG
The Sheet Music Generator.
blog post

expresso
A clojure library for symbolic manipulation of Algebraic Expressions.
tutorial
blog post

webdriver-logic
Logic programming API for testing web applications using clj-webdriver.
Clojure/conj 2012 talk

damp.ekeko
Ekeko enables querying and manipulating an Eclipse workspace using applicative logic programs.
anouncement
screencast

damp.qwal
QWAL is a path expression library to allow querying graphlike structures using core.logic in Clojure.

damp.qwalkeko
Scrape and reason over Java projects stored on git.

peano
Using logic programming (Clojure's core.logic) for test data manipulation and generation.

kibit
kibit is a static code analyzer for Clojure which uses core.logic to search for patterns of code for which there might exist a more idiomatic function or macro.

parsing-packet-with-logic
A small experiment in parsing packets in a style similar to Erlang's <<...>> using core.logic.

maze.logic
Solving mazes using core.logic.

Janus: Consumer-driven Contracts and Mocks
Consumer-driven contracts using core.logic.

Monotony
Monotony is a solution to the problem of how to schedule things in a way that humans find intuitive.

QWAL
QWAL is a path expression library to allow querying graphlike structures using core.logic in Clojure.

FunnyQT
FunnyQT is a model querying and transformation library.

symbol
symbol is a compiler of a subset of Clojure syntax to C++.

guzheng
guzheng is a library for doing branch coverage analysis of Clojure code.

Adventure in Clojure core.logic
Text adventure game in core.logic.

The core.logic wiki also has links to projects using core.logic.

Upcoming Talks

Recorded Talks

miniKanren

William Byrd The Most Beautiful Program Ever Written
audio
Papers We Love NYC, Wednesday, April 12, 2017.

William E. Byrd (joint work with Michael Ballantyne, Gregory Rosenblatt, and Matthew Might)
A Unified Approach to Solving Seven Programming Problems (Functional Pearl) International Conference on Functional Programming (ICFP), Oxford, England, 4 September 2017.
paper | interactive paper | downloadable artifact | Barliman

Tom Stuart
Hello, declarative world
LRUG August 2015 Meetup, August 8, 2015.

Dan Friedman and Jason Hemann
How to be a good host: miniKanren as a case study
Curry On, Prague, Czech Republic, 7 July 2015.

William Byrd
The Promise of Relational Programming
PolyConf 15, Poznań, Poland, 2 July 2015.

Bodil Stokke
μKanren: Running the Little Things Backwards
EuroClojure, Barcelona, Spain, 25 June 2015.

Daniel Brady
Little Logic Languages
Scheme Workshop, Washington, D.C., 19 November 2014.

Jason Hemann and Dan Friedman
Write the Other Half of Your Program: From Functional to Logic Programming
Strange Loop, St. Louis, September 18, 2014.

William E. Byrd
Relational Programming in miniKanren, Part 1 and Part 2
Logic Night
Lambda Lounge Utah, Sandy, UT, May 13, 2014.

Daniel P. Friedman and William E. Byrd
A Relational Exploration of the Chomsky Hierarchy
Strange Loop, St. Louis, September, 2013.

William E. Byrd and Daniel P. Friedman
Fun with Relational Interpreters in miniKanren
flatmap 2013, Oslo, Norway, May 14, 2013 (keynote).

William E. Byrd and Daniel P. Friedman
miniKanren Philosophy
Clojure/conj 2012, Raleigh, NC, November 16, 2012.
(Beware the pink tint!)

Daniel P. Friedman and William E. Byrd
Relational Programming in miniKanren
Strange Loop 2012, St. Louis, MO, September 24, 2012
source code

Daniel P. Friedman and William E. Byrd
miniKanren "untalk"
Clojure/conj 2011, Raleigh, NC, November 10, 2011.

core.logic

Nada Amin and William E. Byrd
From Greek to Clojure
Clojure/conj, Alexandria, VA, November 14, 2013
source code | slides

Craig Brozefsky
Core.logic and SQL Killed my ORM
Clojure/West 2013, Portland, OR, March 19th, 2013.

David Nolen
The Refined Clojurist
Clojure Exchange 2012, London, December 6, 2012

Daniel Gregoire
Web Testing with Logic Programming
Clojure/conj 2012, Raleigh, NC, November 17, 2012.
webdriver-logic project

Steve Miner
Challenges for Logic Programming
Clojure/conj 2012, Raleigh, NC, November 17, 2012.

Edmund Jackson
An Introduction to Logic Programming on the JVM with core.logic (Clojure)
FP Days 2012, Cambridge, October 25, 2012

David Nolen
core.logic: A tutorial reconstruction ("unsession")
Strange Loop 2012, St. Louis, MO, September 24, 2012

Edmund Jackson
core.logic.intro
EuroClojure 2012, London, May 24, 2012
source code

Ryan Senior
Practical core.logic
Clojure/West 2012, San Jose, March 17, 2012

Ambrose Bonnaire-Sergeant
Introduction to Logic Programming with Clojure
Clojure/conj 2011, Raleigh, NC, November 10, 2011.

ClojureScript & core.logic

Adam Solove
Constraint programming in the browser
(Talk focuses on the Cassowary constraint solver for GUI layout, but also discusses core.logic.)
JSConf US, Amelia Island, FL, May 31, 2013

Clojure/West miniKanren confo, Portland, OR, March 19, 2013 (associated with Clojure/West)

Gabriel Pickard
Logic programming in the wild (video not posted yet)

Ryan Senior
Intro to CLP with core.logic

Adam Foltzer
Molog: Typed Functional Logic Programming in Haskell
source code

David Nolen
The Architecture of core.logic

Nada Amin
core.logic.nominal (video not posted yet)
source code

William E. Byrd and Daniel P. Friedman
The Unreasonable Schemers (video not posted yet)
source code

Interviews

Jason Hemann
Jason Hemann miniKanren Interview
For Code Mesh 2016

William E. Byrd
Episode 9: Will Byrd and miniKanren
On the Functional Geekery podcast

William E. Byrd
William Byrd on Logic and Relational Programming, miniKanren
Recorded by InfoQ at Code Mesh 2013, London, England, December, 2013

Written Tutorials

core.logic

Introduction to Logic Programming with Clojure

A Core.logic Primer

Logic Programming for the Social Web

OCanren

OCanren Tutorial

Theses

PhD

Gilmore R. Lundquist
Artificial Software Diversification Through Program Synthesis The University of Texas at Dallas, Dallas, Texas
May, 2024.

Peter Lozov
Автоматизированное построение и эффективное исполнение реляционных программ
(Note: Russian. In English, "Automated synthesis and efficient execution of relational programs")
St. Petersburg State University, St. Petersburg, Russia,
2022.

Weixi Ma
𝜆Kanren: Higher-order Logic Programming Made Simpler
Indiana University, Bloomington, IN,
December 8, 2021.

Jason Hemann
Constraint microKanren in the CLP Scheme
Indiana University, Bloomington, IN,
December 19, 2019.

Thomas L. McCulloch
Feasible form parameter design of complex ship hull form geometry
University of New Orleans, New Orleans, LA,
December 20, 2018.

William E. Byrd
Relational Programming in miniKanren: Techniques, Applications, and Implementations
Indiana University, Bloomington, IN,
September 30, 2009.

Easier to read, single-spaced, re-typeset version of Will's dissertation, released under Creative Commons Attribution 4.0 International (CC BY 4.0) license.

Masters

Arunava Gantait
Term Rewriting in miniKanren
Chennai Mathematical Institute, Chennai, India,
2024.

Bharathi Joshi
metaKanren: miniKanren Program Synthesis, Relationally
International Institute of Information Technology, Hyderabad, India,
2023.

Irina Artemeva
Разработка транслятора из реляционного языка программирования в функциональный
(Note: Russian. In English, "Development of a Translator from a Relational Programming Language to a Functional Language")
ITMO University, Saint Petersburg, Russia,
2020.

Lisa Zhang
Leveraging Constraint Logic Programming for Neural Network Guided Program Synthesis
University of Toronto, Toronto, Canada,
2016.

Kaylen FJ Wheeler
Representing Game Dialogue as Expressions in First-Order Logic
University of Western Ontario, London, Ontario, Canada,
2013.

Undergraduate

Aigerim Assylkhanova
miniKanren efficient search parallelization
Constructor University, Bremen, Germany
December, 2023. (Bachelor's thesis)

Vladimir Turov
Minikanren Visualizer
Constructor University, Bremen, Germany
May, 2023. (Bachelor's thesis)

Laura Zharmukhametova
microKanren with Delayed Goals
Harvard College, Cambridge, MA
March, 2021. (Bachelor's thesis)

Khoa Vo
Relational Conditionals With Pseudo-Functions
South-Eastern Finland University of Applied Sciences, Mikkeli, Finland,
April, 2019. (Bachelor's Thesis)

Emily Fox
Automated Canon Composition
Churchill College, University of Cambridge, Cambridge, UK,
May 10, 2016. (Computer Science Tripos - Part II)

Ramana Kumar
Mechanising Aspects of miniKanren in HOL
Australian National University, Canberra, Australian Capital Territory, Australia,
May 2010. (Undergraduate Honors Thesis)

Papers

Molly Q Feldman, Yiting Wang, William E. Byrd, François Guimbretière, and Erik Andersen.
Towards Answering "Am I On the Right Track?" Automatically using Program Synthesis.
In SPLASH-E 2019.
Paper

Lisa Zhang, Gregory Rosenblatt, Ethan Fetaya, Renjie Liao, William E. Byrd, Matthew Might, Raquel Urtasun, and Richard Zemel.
Neural Guided Constraint Logic Programming for Program Synthesis.
In Advances in Neural Information Processing Systems 31 (NeurIPS 2018), 2018.
Paper and poster
Full proceedings

William E. Byrd, Michael Ballantyne, Gregory Rosenblatt, and Matthew Might
A Unified Approach to Solving Seven Programming Problems (Functional Pearl)
In Proceedings of the ACM on Programming Languages (PACMPL), 1, ICFP, Article 8 (August 2017), 26 pages. DOI.
Interactive version of the paper, created by Nada Amin.

Jason Hemann, Daniel P. Friedman, William E. Byrd, and Matthew Might
A Small Embedding of Logic Programming with a Simple Complete Search
In Proceedings of the 12th Symposium on Dynamic Languages (DLS 2016), Amsterdam, Netherlands, 2016.

Jason Hemann and Daniel P. Friedman
A Framework for Extending microKanren with Constraints
In Proceedings of the 2015 Workshop on Scheme and Functional Programming (Scheme '15), Vancouver, British Columbia, 2015.

Peter Kourzanov
Bidirectional parsing: a functional/logic perspective
In 2014 International Symposium on Implementation and Application of Functional Language (IFL 2014), Boston, MA, October, 2014.

Daniel Brady, Jason Hemann and Daniel P. Friedman
Little Languages for Relational Programming.
In Proceedings of the 2014 Workshop on Scheme and Functional Programming (Scheme '14), Washington, DC, 2014.
Complete source code (Scheme)

Erik Wennstrom
Tableau-Based Model Generation for Relational Syllogistic Logics.
In Proceedings of the 2014 International Symposium on Artificial Intelligence and Mathematics (ISAIM 2014), Fort Lauderdale, FL, January, 2014.

Jason Hemann and Daniel P. Friedman.
microKanren: A Minimal Functional Core for Relational Programming.
In Proceedings of the 2013 Workshop on Scheme and Functional Programming (Scheme '13), Alexandria, VA, 2013.
Complete source code (Scheme)

Cameron Swords and Daniel P. Friedman.
rKanren: Guided Search in miniKanren.
In Proceedings of the 2013 Workshop on Scheme and Functional Programming (Scheme '13), Alexandria, VA, 2013.
Complete source code (Scheme)

Zoltan Varju, Richard Littauer and Peteris Ernis.
Using Clojure in Linguistic Computing
In Proceedings of the 5th European Lisp Symposium, Zadar, Croatia, 2012.

William E. Byrd, Eric Holk, and Daniel P. Friedman.
miniKanren, Live and Untagged: Quine Generation via Relational Interpreters (Programming Pearl).
To appear in the Proceedings of the 2012 Workshop on Scheme and Functional Programming, Copenhagen, Denmark, 2012.
Complete source code (Scheme)

Claire E. Alvis, Jeremiah J. Willcock, Kyle M. Carter, William E. Byrd, and Daniel P. Friedman.
cKanren: miniKanren with Constraints.
In Proceedings of the 2011 Workshop on Scheme and Functional Programming (Scheme '11), Portland, OR, 2011.
Complete source code (R6RS Scheme)

Ramana Kumar and Michael Norrish
(Nominal) unification by recursive descent with triangular substitutions
In Proceedings of the First international conference on Interactive Theorem Proving (ITP'10),
Springer-Verlag Berlin, pp. 51-66, 2010.

Andrew W. Keep, Michael D. Adams, Lindsey Kuper, William E. Byrd, and Daniel P. Friedman.
A Pattern-matcher for miniKanren -or- How to Get into Trouble with CPS Macros.
In Proceedings of the 2009 Workshop on Scheme and Functional Programming,
Cal Poly Technical Report CPSLO-CSC-09-03, pp. 37-45, 2009.

Joseph P. Near, William E. Byrd and Daniel P. Friedman.
alphaleanTAP: A Declarative Theorem Prover for First-Order Classical Logic.
In Proceedings of the 24th International Conference on Logic Programming (ICLP 2008),
LNCS vol. 5366, Springer-Verlag, Heidelberg, pp. 238-252, 2008.
Complete source code--R6RS Scheme and Prolog (.zip file)

Oleg Kiselyov, William E. Byrd, Daniel P. Friedman and Chung-chieh Shan
Pure, declarative, and constructive arithmetic relations (declarative pearl).
In Proceedings of the 9th International Symposium on Functional and Logic Programming,
ed. Jacques Garrigue and Manuel Hermenegildo, pp. 64-80.
LNCS vol. 4989, Springer, 2008.

William E. Byrd and Daniel P. Friedman
alphaKanren: A Fresh Name in Nominal Logic Programming.
In Proceedings of the 2007 Workshop on Scheme and Functional Programming,
Universite Laval Technical Report DIUL-RT-0701, pp. 79-90.
Authors' revised version (recommended)
Revised source code (R5RS Scheme)

Larisse D. Voufo
A miniKanren Interactive Proof System for Deciding the Truth of (simple) Quantied Boolean Formulae

William E. Byrd and Daniel P. Friedman
From Variadic Functions to Variadic Relations: A miniKanren Perspective.
In Proceedings of the 2006 Scheme and Functional Programming Workshop,
University of Chicago Technical Report TR-2006-06, 2006, pp. 105-117.

Oleg Kiselyov, Chung-chieh Shan, Daniel P. Friedman, and Amr Sabry
Backtracking, interleaving, and terminating monad transformers: (functional pearl).
In Proceedings of the 10th ACM SIGPLAN International Conference on Functional Programming (ICFP '05),
ACM Press, New York, pp. 192-203, 2005.

Screencasts

Thomas G. Kristensen

Composing music using core.logic and Overtone - The Composing Schemer
blog post
source code
January 2013.

Timothy Baldridge

Clojure Core.Logic With Custom Data Sources
October 25, 2013.

Bytecode Assembler in Core.Logic
related blog post
Dec 13, 2012.

Coen De Roover

Getting started querying an Eclipse workspace using Ekeko
ekeko project
August 14, 2012.

Weekly Google Hangout on Air

Upcoming Hangouts

Previous Hangouts

Hangout #13, Sunday, June 30.
Topic: Claire shows off a new macro for defining constraints using attributed variables, a new version of the matche pattern matching macro, and the implementation of templateo (declarative copy_term) (URL). Norman demos his code for solving nonogrids problems. Will talks about CPSing miniKanren programs.

Hangout #12, Sunday, June 23, 2013.
Topic: Gary shows off his CLP(FD) program to layout 2D figures; Will describes the new, apparently fixed templateo constraint, and explains how it is used in a relational term reducer for the untyped lambda-calculus.

Hangout #11, Sunday, June 9, 2013.
Topic: Unexpected memory usage in conde, and how to fix it in CLP(FD); meta-interpreters in miniKanren (code); what do you need to know to use miniKanren effectively?; Will's new book on miniKanren (in progress).

Hangout #10, Sunday, June 2, 2013.
Topic: We discuss CLP(Set) and declarative copy_term (a.k.a., templateo) (code). Lindsey shows off LVish (code). David poses a core.logic puzzle. Dan and Jason discuss miniC, a minimal miniKanren without macros. Will shows off a relational lambda calculus reducer (code).

Hangout #9, Sunday, May 19, 2013.
Topic: Will shows off a meta-circular interpreter for miniKanren (code), and describes the outline for a new book he is writing on relational programming (book).

Hangout #8, Sunday, May 5, 2013.
Topic: Dan and Jason show off a cool way to implement mutual recursion in an interpreter. Will and the gang then live-code a relational interpreter for general Deterministic Finite Automata (code).

Hangout #7, Sunday, April 28, 2013.
Topic: Translating simple Scheme functions to miniKanren using correctness-preserving transformations.

Hangout #6, Sunday, April 21, 2013.
Topic: Live coding/real-time solution of a simple problem solved by Michael. Also, Claire discusses new features of cKanren in Racket.

Hangout #5, Sunday, April 14, 2013.
Topic: Stump the Chump! Will partially translates miniKanren's unify function from Scheme into miniKanren (code). Also, discussion of extra-logical operators, and new miniKanren features in progress: CLP(Set), constraint handling rules, lazy constraints for recursion.

Hangout #4, Sunday, April 7, 2013.
Topic: Debugging miniKanren programs; Constraint Logic Programming over sets (based on the paper Sets and Constraint Logic Programming by Dovier, et al., 2000).

Hangout #3, Sunday, March 31, 2013.
Implementation of simplified miniKanren (source code).

Hangout #2, March 24, 2013.
Implementing disequality constraints, absento/presento constraints, miniKanren Confo at Clojure/West, relational CESK machine.

Hangout #1, March 10, 2013.
A little miniKanren history, what it means to be relational, a relational variant of copy-term, debugging miniKanren programs.

Podcasts

Mostly lazy... a Clojure podcast
Episode 9 with Kevin Lynagh and Paul deGrandis: web dev ennui, CRDTs, and core.logic
Recorded December 14th, 2012.

Blogs

David Nolen - dosync

STLC Redux: Part II
Logic Programming is Underrated
The Simply Typed Lambda Calculus in 20 Lines Redux

From David Nolen's old blog (courtesy of the Internet Archive's Wayback Machine):

Know Your Bounds
friendlier
sudoku
A Logic Programming Reading List
Logic Programming & JavaScript
core.logic & VPRI STEPS
Another Taste of cKanren
A Taste of cKanren
Simple Type Inference For The Simply Typed Lambda Calculus in ~20 Lines
Logos -> core.logic
Crazy Ideas
Fun
Spring Cleaning
Simple Constraints
~2.1ms
Tabling in Logos
Pattern Matching
Finally ... a clue
Performance Matters
Faster Unification
Logic Programming and Performance
A Short Break
Life Without Tail Call Optimization
Announcing Logos
A miniKanren introduction via Clojure

Contact

This site is maintained by Will Byrd: webyrd@gmail.com.

Thanks to Shantanu Kumar, Martin Trojer, and Gergely Nagy for improving the site by submitting a pull request.

What is miniKanren?

miniKanren Workshops and other Meetings

The Book

miniKanren Online Uncourse (via Hangouts on Air)

Implementations

Scheme

Racket

Clojure

Assorted Languages

C#

CoffeeScript

Common Lisp

Coq

Crystal

Dart

Dylan

Elixir

Elm

Emacs Lisp

Erlang

Extempore

F#

Go

Groovy

Haskell

HOL Light

Hy

Idris

J

Java

JavaScript

Julia

Kotlin

Lisp Flavored Erlang

Lua

Mímir experimental rules engine

miniKanren

ML

Moxie

Nu

OCaml

Perl

PHP

Pony

Prolog

Python

Pure

Reason

Ruby

Rust

Scala

Shen

Smalltalk

Swift

Typescript

Zig

Projects using miniKanren or core.logic

miniKanren

core.logic

Upcoming Talks

Recorded Talks

miniKanren

core.logic

ClojureScript & core.logic

Clojure/West miniKanren confo, Portland, OR, March 19, 2013 (associated with Clojure/West)

Interviews

Written Tutorials

core.logic

OCanren

Theses

PhD

Masters

Undergraduate

Papers

Screencasts

Thomas G. Kristensen

Timothy Baldridge

Coen De Roover

Weekly Google Hangout on Air

Upcoming Hangouts