---
title: "Brand X: LISP Suport for Semantic Networks"
authors:
  - "Peter Szolovits"
  - "William A. Martin"
doi: ""
url: "https://ijcai.org/proceedings/1981/179"
pdf: "https://ijcai.org/proceedings/1981/0179.pdf"
venue: "Proceedings of the Seventh International Joint Conference on Artificial Intelligence"
year: 1981
pages: "940-945"
track: "Programming Environments"
keywords:
---

# Brand X: LISP Suport for Semantic Networks

Peter Szolovits, William A. Martin

*Proceedings of the Seventh International Joint Conference on Artificial Intelligence*, pages 940-945.

## Abstract

RRA Nil x is a simple representation language implemented as a pure exten sion of I.ISP . BRAND X provides the following additional facilities over I.I SP: Uniqut and canonical stru ctures. properly /isis for all objects, labels for all o bje cts . and a sy ntax to expre ss each of these . supponed by a rea der and printer. BRAND x is intended as an "assembly language" for repr ese ntati on lan gu a ges , attempting to provide facilities generally found use ful in th e simpl est manner, without any strong commitme nt to specific represe nt a ti o nal co nventions. The fund amental ideas of the language are d esc rib ed, an ove rvi ew of its featur es and no lltti on is given , and some inherent p ro blem s of impl ementation and sem a ntics are presented.