# Install eprover with Homebrew, apt, Nix, dnf, MacPorts

Theorem prover for full first-order logic with equality. Version 3.2 via Homebrew; verified from local package data. Also installable with debian: sudo apt install eprover.

## Install

```sh
sudo av install brew:eprover
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install eprover
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install picosat
```

  Evidence: MacPorts ports tree: math/picosat/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- Debian apt (92%):

```sh
sudo apt install eprover
```

  Evidence: Debian stable package indexes: eprover from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- Nix (92%):

```sh
nix profile install nixpkgs#eprover
```

  Evidence: nixpkgs package indexes: pkgs/by-name/ep/eprover/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- dnf (92%):

```sh
sudo dnf install picosat
```

  Evidence: Fedora Rawhide package metadata: picosat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst

## Package facts

- **Package key:** brew:eprover
- **Package manager:** Homebrew
- **Version:** 3.2
- **Source summary:** Theorem prover for full first-order logic with equality
- **Homepage:** <https://eprover.org/>
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- checkproof (alias)
- e_axfilter (alias)
- e_deduction_server (alias)
- e_ltb_runner (alias)
- e_stratpar (alias)
- eground (alias)
- ekb_create (alias)
- ekb_delete (alias)
- ekb_ginsert (alias)
- ekb_insert (alias)
- epclextract (alias)
- eprover (alias)
- picosat (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 3.2
## Project history and usage

E is a theorem prover for full first-order logic with equality and, in newer versions, monomorphic higher-order logic. It takes axioms plus a conjecture and searches for a formal proof; when it succeeds, it can output proof steps suitable for independent checking.

### Project history

Development of E started as part of the E-SETHEO project at the Technical University of Munich. The official page says the first public release was in 1998 and that the system has been continuously improved since then.

E grew from a first-order automated theorem prover into a family of command-line tools around proof search, proof checking, axiom filtering, grounding, and related workflows. The 3.x line added full higher-order logic support and improved multicore scheduling, while the current site advertises E 3.2.

### Adoption history

E has a long competition record. The official awards page says E has participated on its own or as part of E-SETHEO in every CASC competition since 1999, has routinely placed among the top provers in several first-order categories, and has also been used as a subcomponent by other competitors.

Package adoption is helped by E's academic visibility and command-line packaging shape. The project distributes source releases, documents Unix man pages and a PDF manual, and is packaged in Homebrew, Debian, Ubuntu, Nix, and related ecosystems.

### How it is used

The official usage page recommends starting with automatic mode, for example eprover --auto problem.p, and using strategy scheduling for multicore runs. Inputs are typically in TPTP/TSTP syntax, and newer versions can produce answer substitutions for existential questions.

E also ships documentation with the distribution, including README files, Unix man pages for major executables, --help output, and the E manual in E/DOC/eprover.pdf.

### Why package nerds care

E is significant because it is a serious research prover that still behaves like a Unix toolchain: source tarballs, man pages, many small executables, CLI flags, and benchmark-oriented releases. It is the kind of scientific package where reproducible command lines matter.

### Timeline

- 1998: First public release of E.
- 1999: E begins its long-running CASC competition participation.
- 2017: E 2.0 adds support for many-sorted logic through TPTP TFF.
- 2023: E 3.0 adds full higher-order logic support and improved multicore scheduling.
- 2024: E 3.1 is released.
- 2026: E 3.2 is listed as the current release on the official site.

### Related projects

- E-SETHEO is the project context from which E originated.
- TPTP/TSTP are the problem and proof syntaxes emphasized in E's usage documentation.
- PicoSAT is integrated in parts of the E distribution and appears among packaged executables.

### Sources

- <https://wwwlehre.dhbw-stuttgart.de/~sschulz/E/E.html>
- <https://wwwlehre.dhbw-stuttgart.de/~sschulz/E/Usage.html>
- <https://wwwlehre.dhbw-stuttgart.de/~sschulz/E/Awards.html>
- <https://wwwlehre.dhbw-stuttgart.de/~sschulz/E/Archive.html>
- <https://github.com/eprover/eprover>
- <https://api.github.com/repos/eprover/eprover>


## Security Notes

broad file, network, media, or database tool signal.

- **Geiger risk:** blue / medium
- broad file, network, media, or database tool signal

## Other Package-Manager Records

- Debian apt - eprover - 3.2.5+ds-1: normalized package name match | Debian stable package indexes: eprover from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Equational theorem prover | https://eprover.org
- Nix - eprover: normalized package name match | nixpkgs package indexes: pkgs/by-name/ep/eprover/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - eprover - 3.0.03+ds-1: normalized package name match | Ubuntu 24.04 LTS package indexes: eprover from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Equational theorem prover | https://eprover.org
- MacPorts - picosat: installed executable or alias match | MacPorts ports tree: math/picosat/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- Debian apt - picosat - 965-2: installed executable or alias match | Debian stable package indexes: picosat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | SAT solver with proof and core support | http://fmv.jku.at/picosat/
- Nix - picosat: installed executable or alias match | nixpkgs package indexes: pkgs/by-name/pi/picosat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - picosat - 965-2: installed executable or alias match | Ubuntu 24.04 LTS package indexes: picosat from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | SAT solver with proof and core support | http://fmv.jku.at/picosat/
- dnf - picosat - 965-31.fc45: installed executable or alias match | Fedora Rawhide package metadata: picosat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | A SAT solver | https://fmv.jku.at/picosat/
- dnf - picosat-R - 965-31.fc45: installed executable or alias match | Fedora Rawhide package metadata: picosat-R from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | A SAT solver library for R | https://fmv.jku.at/picosat/
- dnf - picosat-devel - 965-31.fc45: installed executable or alias match | Fedora Rawhide package metadata: picosat-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Development files for PicoSAT | https://fmv.jku.at/picosat/
- dnf - picosat-libs - 965-31.fc45: installed executable or alias match | Fedora Rawhide package metadata: picosat-libs from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | A SAT solver library | https://fmv.jku.at/picosat/


## Combined YAML source

View the package source record on GitHub. [combined/eprover.yml](https://github.com/mxcl/pkgdb/blob/main/combined/eprover.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph