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arXiv · 2607.23557

An Unofficial FastLAS Tutorial: A Programmer's Guide

Fabio Aurelio D'Asaro
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Abstract

FastLAS is a scalable system for Inductive Logic Programming (ILP): you give it some background knowledge, a language bias, and a set of examples, and it searches for a set of logic program rules (a hypothesis) that explains the examples. These notes are a hands-on introduction to writing FastLAS programs. They are organised as a programmer's guide: syntax first, then a ladder of worked, numbered examples of increasing difficulty. Every self-contained example here has been run against FastLAS 2.2.0 and shows the tool's actual output. We keep theory to the minimum needed to write correct programs; throughout, set-off notes flag where FastLAS differs from its sibling system ILASP, and where the two learning algorithms (--opl and --nopl) behave differently. The document is intended as an unofficial tutorial to FastLAS 2.2.0, not as an official language specification.

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Fabio Aurelio D'Asaro. 2026-07-26. An Unofficial FastLAS Tutorial: A Programmer's Guide. https://arxiv.org/abs/2607.23557

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