Brand X Manual
Peter Szolovits, William A. Martin · DSpace@MIT (Massachusetts Institute of Technology) · 1980
BRAND X is a simple representation language implemented as a pure extension of LISP. BRAND X provides the following additional facilities over LISP: Unique and canonical structures, property lists for all objects, labels for all objects, and a syntax to express each of these, supported by a reader and printer. BRAND X is intended as an "assembly language" for representation languages, attempting to provide facilities generally found useful in the simplest manner, without any strong commitment to specific representational conventions.