--- title: "Prolog Prologue" type: "article" slug: "prolog-prologue" url: "http://localhost/article/prolog-prologue/" markdown_url: "http://localhost/article/prolog-prologue.md" published_at: "2026-02-08T15:17:23+00:00" modified_at: "2026-02-08T15:17:24+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "This issue of IQLR sees the launch of GT-Prolog, a new implementation of the Prolog language widely used within industry and academia for the development of Artificial Intelligence (AI) applications and for symbolic programming generally. Although GT-Prolog isn’t the first Prolog system for the QL (that honour goes to Hans Lub’s QL Prolog, available from…" category: - name: "International QL Report" slug: "international-ql-report" taxonomy: "category" url: "http://localhost/category/periodicals/international-ql-report/" post_tag: - name: "QL" slug: "ql" taxonomy: "post_tag" url: "http://localhost/tag/ql/" model: - name: "Sinclair QL" slug: "sinclair-ql" taxonomy: "model" url: "http://localhost/model/sinclair-ql/" publication_r: id: 33740 title: "International QL Report" type: "periodical" url: "http://localhost/periodical/international-ql-report/" authors: "Graham Thwaites" volume: "3" issue: "5" issues_articles: - id: 37204 title: "International QL Report V3 I5" type: "issue" url: "http://localhost/issue/international-ql-report-v3-i5/" pages: "64-67" pubdate: "January/February 1994" archive_link: false --- # Prolog Prologue This issue of IQLR sees the launch of GT-Prolog, a new implementation of the Prolog language widely used within industry and academia for the development of Artificial Intelligence (AI) applications and for symbolic programming generally. Although GT-Prolog isn’t the first Prolog system for the QL (that honour goes to Hans Lub’s QL Prolog, available from the Quanta library) it does seem that information on Prolog within the QL community is somewhat lacking. This article will attempt to redress that situation.