macOS
Homebrewverified · 100%
brew install acl2local Homebrew formula metadata
MacPortsverified · 94%
sudo port install acl2MacPorts ports tree · math/acl2/Portfile · source: api.github.com
brew
Install acl2 with Homebrew, apt, MacPorts, Nix
Logic and programming language in which you can model computer systems. Version 8.7 via Homebrew; verified 2026-06-05.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install acl2Debian stable package indexes · acl2 · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#acl2nixpkgs package indexes · pkgs/by-name/ac/acl2/package.nix · source: api.github.com
overview
Package summary
Logic and programming language in which you can model computer systems
Project links
Commands and aliases
- acl2
- acl2p
history
Project history and usage
ACL2 is both a logic and programming language for modeling computer systems and a theorem prover for proving properties of those models.
Project history
The ACL2 home page expands ACL2 as A Computational Logic for Applicative Common Lisp and describes it as part of the Boyer-Moore family of provers. The same page names Matt Kaufmann and J Strother Moore as the project contacts/authors for the current release page.
The official GitHub README divides the project into the ACL2 System and the ACL2 Books, with the system maintained by the ACL2 authors and the books maintained by the broader ACL2 community.
Adoption history
ACL2 adoption is organized around releases, manuals, workshops, mailing lists, and community books rather than a single executable alone. The home page emphasizes extensive documentation, community books, workshops, publications, and course material.
Package-manager adoption gives users a way to install a working ACL2 executable without manually building a Common Lisp image, while advanced users still rely on the official source and book-certification workflow.
How it is used
Users model systems in the ACL2 logic/programming language, submit definitions and theorems, and use the prover interactively or through books. The official documentation can be browsed on the web, locally, in Emacs ACL2-Doc, or through the ACL2 :DOC command.
The community books are a major part of day-to-day ACL2 use: they provide lemma libraries, utilities, examples, and contributed tools that extend the base prover.
Why package nerds care
ACL2 is package-nerd significant because it packages a formal-methods environment with Common Lisp implementation concerns, a large documentation tree, community libraries, and command-line entry points.
It also shows how theorem provers differ from ordinary CLIs: reproducibility depends on the executable, the versioned logic, and certified books lining up.
Timeline
- 2005: Authors of the Boyer-Moore family of provers receive the ACM Software System Award, as noted on the ACL2 home page.
- 2015: ACL2 Version 7.0 era predates the move of books to the current GitHub workflow noted by the home page.
- 2026: ACL2 Version 8.7 home page published with current manual, release links, and community-book guidance.
Related projects
- Related projects and extensions include ACL2(r), ACL2(p), ACL2s, the ACL2 Community Books, the Boyer-Moore prover family, Common Lisp implementations, and the acl2-devel release fork.
Sources
security posture
Risk level: yellow
generalized runtime or code generation signal.
Risk classifier
yellow risk · medium confidence · runtime
Why
- generalized runtime or code generation signal
Signals
- text:programming language
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 5 platform targets.
- Installs with 1 runtime dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
acl2 | cli | global executable | |
acl2p | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version8.7
manager updated2026-06-05
local dataok
upstreamcurrent
latest detected8.7
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:acl2 |
|---|---|
| Version | 8.7 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/acl2 |
| Homepage | https://www.cs.utexas.edu/~moore/acl2/ |
| Repository | https://github.com/acl2/acl2 |
| Upstream docs | https://acl2.org/doc |
| License | BSD-3-Clause |
| Source archive | https://github.com/acl2/acl2/archive/refs/tags/8.7.tar.gz |
| Last updated | 2026-06-05T11:32:36Z |
| Pulse | updated |
| Dependencies | sbcl |
| Bottle | available (on arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | acl2 |
| Version Scheme | 0 |
| Revision | 3 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
acl2 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: main binary
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2- Section: math
- Architecture: amd64
- 5 dependencies
- 3 optional deps
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-books 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: compiled libraries
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-books- Section: math
- Architecture: amd64
- Source Package: acl2
- 3 dependencies
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-books-certs 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: library certificates
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-books-certs- Section: math
- Architecture: all
- Source Package: acl2
- 2 dependencies
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-books-source 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: library sources
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-books-source- Section: math
- Architecture: all
- Source Package: acl2
- 2 dependencies
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-doc 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: documentation
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-doc- Section: doc
- Architecture: all
- Source Package: acl2
- 2 dependencies
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-infix 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: infix interface
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-infix- Section: math
- Architecture: amd64
- Source Package: acl2
- 3 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-infix-source 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: infix source
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-infix-source- Section: math
- Architecture: all
- Source Package: acl2
- 1 dependencies
- normalized package name match
- Matched by: Acl2
Debian apt95%
acl2-source 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: source files
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-source- Section: math
- Architecture: all
- Source Package: acl2
- 1 dependencies
- normalized package name match
- Matched by: Acl2
Debian apt95%
elpa-acl2 8.6+dfsg-2
Computational Logic for Applicative Common Lisp: emacs interface
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install elpa-acl2- Section: lisp
- Architecture: all
- Source Package: acl2
- 6 dependencies
- normalized package name match
- Matched by: Acl2
Nix95%
acl2
nix profile install nixpkgs#acl2- normalized package name match
- Matched by: Acl2
Ubuntu apt95%
acl2 8.5dfsg-5build3
Computational Logic for Applicative Common Lisp: main binary
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2- Section: universe/math
- Architecture: amd64
- 5 dependencies
- 3 optional deps
- normalized package name match
- Matched by: Acl2
Ubuntu apt95%
acl2-books 8.5dfsg-5build3
Computational Logic for Applicative Common Lisp: compiled libraries
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-books- Section: universe/math
- Architecture: amd64
- Source Package: acl2
- 3 dependencies
- normalized package name match
- Matched by: Acl2
Ubuntu apt95%
acl2-books-certs 8.5dfsg-5build3
Computational Logic for Applicative Common Lisp: library certificates
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-books-certs- Section: universe/math
- Architecture: all
- Source Package: acl2
- 2 dependencies
- normalized package name match
- Matched by: Acl2
Ubuntu apt95%
acl2-books-source 8.5dfsg-5build3
Computational Logic for Applicative Common Lisp: library sources
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-books-source- Section: universe/math
- Architecture: all
- Source Package: acl2
- 2 dependencies
- normalized package name match
- Matched by: Acl2
Ubuntu apt95%
acl2-doc 8.5dfsg-5build3
Computational Logic for Applicative Common Lisp: documentation
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-doc- Section: universe/doc
- Architecture: all
- Source Package: acl2
- 2 dependencies
- normalized package name match
- Matched by: Acl2
Ubuntu apt95%
acl2-infix 8.5dfsg-5build3
Computational Logic for Applicative Common Lisp: infix interface
https://www.cs.utexas.edu/users/moore/acl2/
sudo apt install acl2-infix- Section: universe/math
- Architecture: amd64
- Source Package: acl2
- 3 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Acl2
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment