haskell@gentoo.org
Gentoo Haskell
Agda is a dependently typed functional programming language: It has
inductive families, which are similar to Haskell's GADTs, but they
can be indexed by values and not just types. It also has
parameterised modules, mixfix operators, Unicode characters, and an
interactive Emacs interface (the type checker can assist in the
development of your code).
Agda is also a proof assistant: It is an interactive system for
writing and checking proofs. Agda is based on intuitionistic type
theory, a foundational system for constructive mathematics developed
by the Swedish logician Per Martin-Löf. It has many
similarities with other proof assistants based on dependent types,
such as Coq, Epigram and NuPRL.
This package includes both a command-line program (agda) and an
Emacs mode. If you want to use the Emacs mode you can set it up by
running @agda-mode setup@ (see the README).
Note that the Agda package does not follow the package versioning
policy, because it is not intended to be used by third-party
packages.