verified-3d-mesh-intersection

Formally verified 3D mesh intersection - trust 93 lines of spec, not 1000+ lines of AI-written code

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6Mentions

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110GitHub stars

REPOSITORY AT A GLANCE

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What it is

Formally verified 3D mesh intersection - trust 93 lines of spec, not 1000+ lines of AI-written code

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Where it is used

No documented product use has been verified yet.

What people are saying

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This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 5:05:26 PM UTC.

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Mentions over time

HN mentions by hour6 dated mentions

Observed mentions: 2026-07-28 13:07:14 UTC to 2026-07-28 15:50:05 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

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Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
Jul 28, 13:00	2026-07-28 13:00:00 UTC	2026-07-28 14:00:00 UTC	4	1	3
Jul 28, 14:00	2026-07-28 14:00:00 UTC	2026-07-28 15:00:00 UTC	1	0	1
Jul 28, 15:00	2026-07-28 15:00:00 UTC	2026-07-28 16:00:00 UTC	1	0	1

What Hacker News says

1 sources

permute·Jul 28, 2026

Both the implementation and the proof are written in Lean. In the files I reference here https://github.com/schildep/verified-3d-mesh-intersection#mi... there are theorems about the function that does the mesh intersection computation. The implementation is in the CSG/Impl folder. The proof is in the CSG/Proof folder. They are imported and tied together in the human reviewed file. Lean checks that these theorems in the human reviewed file are proven via the proofs.

In Show HN: Formally verified 3D CSG: Trust 93 lines spec, not 1000 lines AI code