ML
1. <robotics> Manipulator Language. IBM language for handling robots.
2. Meta Language. R. Milner <rm@lfcs.edinburgh.ac.uk> et al, 1973. A
strict higher-order functional language. It was the first language to include
polymorphic typing which was statically-checked. It also had garbage collection
and a formal semantics.
It began as the metalanguage for the Edinburgh LCF proof assistant. (LCF="Logic
for Computable Functions") People soon noticed that ML could be a useful general
programming language and stand-alone versions were implemented. Standard ML
(SML) is a descendant of these (and related languages such as Hope).
The "metalanguage" aspect has long since disappeared from the language itself
(although there are some systems that still use it that way). The historical
name is now so inappropriate that asking what ML stands for is like asking what
C or Unix stands for. It doesn't stand for anything; it just is.
LCF ML was implemented in Stanford LISP. Cardelli (1981) implemented ML in
Pascal using the Functional Abstract Machine (FAM). It has been significantly
redesigned to produce Standard ML and Lazy ML.
["A Metalanguage for Interactive Proof in LCF", M.J.C. Gordon et al, 5th POPL,
ACM 1978].
(2006-07-21)
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