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James-Hanson/junk-theorems-in-lean

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A small collection of formally verified junk theorems provable in Lean4 + Mathlib.

3 mentions on Hacker News by 3 people: 1 story, 2 comments · first 2025-12-23 · latest 2026-09-04

Mentions per year 3 mentions · busiest year 2026 (2)
20082026
  1. …in a way that can’t be fooled. I would be a bit careful asserting that in full generality, given https://github.com/James-Hanson/junk-theorems-in-lean
    comment by stratos123 · 2026-09-04 · in Formalizing Fermat's Last Theorem
  2. …are pretty subtle, and which really might turn up in e.g. a verified systems programming context: https://github.com/James-Hanson/junk-theorems-in-lean/blob/m... (there is a proof of 0=1 at the end - it is easy to understand where it comes…
    comment by Diogenesian · 2026-06-27 · in AI in mathematics is forcing big questions