Agda: A dependently typed functional programming language and proof assistant

[ dependent-types, program ] [ Propose Tags ]

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.


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Versions [RSS] [faq] 2.2.0, 2.2.2, 2.2.4, 2.2.6, 2.2.8, 2.2.10, 2.3.0, 2.3.0.1, 2.3.2, 2.3.2.1, 2.3.2.2, 2.4.0, 2.4.0.1, 2.4.0.2, 2.4.2, 2.4.2.1, 2.4.2.2, 2.4.2.3, 2.4.2.4, 2.4.2.5, 2.5.1, 2.5.1.1, 2.5.1.2, 2.5.2, 2.5.3, 2.5.4, 2.5.4.1, 2.5.4.2, 2.6.0, 2.6.0.1, 2.6.1, 2.6.1.1, 2.6.1.2, 2.6.1.3, 2.6.2 (info)
Change log CHANGELOG.md
Dependencies aeson (>=1.1.2.0 && <1.6), Agda, array (>=0.5.1.1 && <0.6), async (==2.2.*), base (>=4.9.0.0 && <4.16), binary (>=0.8.3.0 && <0.9), blaze-html (>=0.8 && <0.10), boxes (>=0.1.3 && <0.2), bytestring (>=0.10.8.1 && <0.12), case-insensitive (>=1.2.0.4 && <1.3), containers (>=0.5.11.0 && <0.7), data-hash (>=0.2.0.0 && <0.3), deepseq (>=1.4.2.0 && <1.5), directory (>=1.2.6.2 && <1.4), edit-distance (>=0.2.1.2 && <0.3), equivalence (>=0.3.2 && <0.4), exceptions (>=0.8 && <0.11), filepath (>=1.4.1.0 && <1.5), ghc-compact (==0.1.*), gitrev (>=1.3.1 && <2.0), hashable (>=1.2.1.0 && <1.4), hashtables (>=1.2.0.2 && <1.3), haskeline (>=0.7.2.3 && <0.9), monad-control (>=1.0.1.0 && <1.1), mtl (>=2.2.1 && <2.3), murmur-hash (==0.1.*), parallel (>=3.2.2.0 && <3.3), pretty (>=1.1.3.3 && <1.2), process (>=1.4.2.0 && <1.7), regex-tdfa (>=1.3.1.0 && <1.4), split (>=0.2.0.0 && <0.2.4), stm (>=2.4.4 && <2.6), strict (>=0.3.2 && <0.5), template-haskell (>=2.11.0.0 && <2.18), text (>=1.2.3.0 && <1.3), text-icu (>=0.7.1.0), time (>=1.6.0.1 && <1.12), transformers (==0.5.*), unordered-containers (>=0.2.5.0 && <0.3), uri-encode (>=1.5.0.4 && <1.6), Win32 (>=2.3.1.1 && <2.13), zlib (==0.6.*) [details]
License LicenseRef-OtherLicense
Copyright (c) 2005-2021 The Agda Team.
Author Ulf Norell and The Agda Team, see https://agda.readthedocs.io/en/latest/team.html
Maintainer Ulf Norell <ulfn@chalmers.se>
Category Dependent types
Home page http://wiki.portal.chalmers.se/agda/
Bug tracker https://github.com/agda/agda/issues
Source repo head: git clone https://github.com/agda/agda.git
this: git clone https://github.com/agda/agda.git(tag v2.6.2)
Uploaded by AndresSicardRamirez at 2021-06-19T06:17:43Z
Distributions Arch:2.6.2, Debian:2.5.4.1, Fedora:2.6.2, FreeBSD:2.4.2.3, LTSHaskell:2.6.2, NixOS:2.6.2, Stackage:2.6.2
Executables agda-mode, agda
Downloads 47402 total (447 in the last 30 days)
Rating 2.75 (votes: 8) [estimated by Bayesian average]
Your Rating
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2021-06-19 [all 1 reports]

Modules

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Manual Flags

NameDescriptionDefault
cpphs

Use cpphs instead of cpp.

Disabled
debug

Enable debugging features that may slow Agda down.

Disabled
Automatic Flags
NameDescriptionDefault
enable-cluster-counting

Enable the --count-clusters flag. (If enable-cluster-counting is False, then the --count-clusters flag triggers an error message.)

Disabled
optimise-heavily

Enable some expensive optimisations when compiling Agda.

Disabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

Maintainer's Corner

For package maintainers and hackage trustees

Candidates


Readme for Agda-2.6.2

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Agda 2

Hackage version Stackage version Travis Status Test Stack Build Status via GH Actions 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