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eyelang

v0.5.2

Published

Eyelang turns facts and rules into answers and proofs.

Vulnerabilities

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Links

Git

Maintainers

josdjosd

Keywords

logicrulesprologreasonerproofs

Readme

Eyelang

npm version DOI

Eyelang combines ISO Prolog and W3C RDF 1.2 to produce answers with inspectable proofs.

Book — The Art of Eyelang · Why Eyelang? · Playground

The book is the reference for the language, command line, JavaScript API, RDF 1.2 support, examples, proofs, conformance, and implementation.

Quick start

Eyelang requires Node.js 18 or newer.

npm install --global eyelang
eyelang examples/socrates.pl
eyelang --proof examples/socrates.pl
eyelang --goal 'type(socrates, mortal)' examples/socrates.pl

Programs may declare their default queries with %% goal: comments.

RDF 1.2

node tools/rdf-to-pl.mjs --rules rules.pl data.ttl -o program.pl
eyelang program.pl > derived.pl
node tools/pl-to-rdf.mjs derived.pl -o derived.nq

See the book for RDF mappings, graphs, triple terms, reifiers, annotations, formats, and policy examples.

Development

git clone https://github.com/eyereasoner/eyelang.git
cd eyelang
npm install
npm test

Eyelang is released under the MIT License.