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Description

A dependently typed functional programming language and proof assistant.

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, Idris, Lean 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.

Agda 2

Hackage version Stackage version Test Documentation Status Agda Zulip

The official Agda logo

Note that this README is only about Agda, not its standard library. See the Agda Wiki for information about the library.

Documentation

Getting Started

Contributing to Agda

Metadata

Version

2.6.4.1

License

Executables (2)

  • bin/agda-mode
  • bin/agda

Platforms (75)

    Darwin
    FreeBSD 13
    Genode
    GHCJS
    Linux
    MMIXware
    NetBSD
    none
    OpenBSD
    Redox
    Solaris
    WASI
    Windows
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