LISP70 A {Lisp} dialect descended from {MLISP} and {MLISP2}. Also known as PLISP and VEL. Useful for parsing. Only the pattern-matching system was published and fully implemented. According to Alan Kay, LISP70 had an influence on {Smalltalk-72}. "The LISP70 Pattern Matching System, Larry Tesler et al, IJCAI 73.