ML (Meta Language) is a family of statically-typed functional programming languages designed for type safety and program verification. It introduced polymorphic type inference with the Hindley-Milner type system, making it influential in programming language theory and functional programming.
functional, purely functional, imperative, structured
formal verification, mathematics, education
pattern matching, algebraic data types, type inference, first-class functions, closures, pure functions, modules
static system, structural typing, strong typing, full inference, compile-time checking, none type coercion, optional type annotations
compiled
Ur/Web, Rust, ParaSail, Erlang, Alice, Claire, OCaml, Haskell, Ceylon, Elm, Scala, C++, Lean, Miranda, Caml, Kotlin, ATS, C#, M, Clojure, Standard ML, Felix, Gallina, F#
ml, mli
| Status | active |
| Type | programming |
| Created | 1973 |
| Designed by | Robin Milner |
| PyPL Index | N/A |
| TIOBE Index | #45 |
| GitHub rank | N/A |