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fabio-rovai / open-ontologies

Plan, apply and roll back changes to a production ontology, with a blast radius report and a proof an auditor can re-check.

Why this job: works in the areas we cover, but does not say which job it does

A hand-drawn animation of ies-core.ttl. A person asserts the grey edges. The engine derives the green edges, and Lean 4 checks the one certificate that holds them. Four provers read the clauses and give opinions. A forged red line is refused, and a question the file cannot be asked comes back unasked.

What it does

Then give the reviewer a proof that they can check without trust in you. Open Ontologies is written in Rust. It ships as one binary.

Get started

No single install command. Read the steps in the README (opens in new tab)

Maintenance
Active
Last commit 5 days ago
Stars
2,856
+33 this week
Licence
MIT
Allows business use
Downloads for
3 systems
Mac, Windows, Linux
Latest version
v2.1.0
Released 17 days ago
Built with
Rust
64% of the code

Is it looked after?

Contributors
1
Last 90 days
Issues
100% closed
0 still open
Pull requests
235 merged
1 waiting
Releases
16
16 in the last year

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More: download files, languages, topics and project record

Download files, v2.1.0

  • Mac2 files, 244 downloads
  • Windows1 file, 110 downloads
  • Linux6 files, 2,206 downloads

All files on GitHub (opens in new tab)

Languages

  • Rust 64%
  • Python 12%
  • Lean 10%
  • HTML 5%

Topics

  • ai-native
  • description-logics
  • formal-verification
  • infrastructure-as-code
  • isabelle-language
  • knowledge-graph
  • lean
  • lean4
  • mcp
  • mcp-server
  • ontology
  • owl

Project record

  • JobOther AI tools
  • StatusListed
  • Commits1,082
  • Forks320
  • Watching22
  • Stars in 28 days+1,157
  • CreatedMar 9, 2026
  • First seen by usNov 7, 2026
  • CheckedNov 7, 2026

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