Spivak's Calculus formalized in Lean 4
every theorem, every problem
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HN · launched Sep 26, 2026 · 22 upvotes (top 26%) · 1 view
Niche: mathematical solvers and optimization engines · 80 launches, 2 in the last 7 days · Explore this niche →
Category and tags
- Education
- Dev tools
- B2C
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 80 launches in mathematical solvers and optimization engines →
Could you build this?
No Formally proving every single theorem and exercise from Michael Spivak's rigorous Calculus textbook in Lean 4 requires deep graduate-level mathematical expertise and specialized interactive theorem proving skills that LLMs cannot reliably synthesize on their own.
What it would actually take: This project requires an expert in Lean 4 and real analysis. The tech stack relies on Lean 4, Mathlib4, and interactive theorem provers. The core challenge is manual formalization, tactic construction, and mapping subtle mathematical intuition into machine-verifiable proofs across hundreds of intricate textbook problems.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 2222 launches clear the similarity bar, closest 8 shown.
Attention rank: #568 of 2223 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 332 days after the earliest competitor.
- spivak-lean · github · 2026-09-26 · 42 upvotes · similarity 0.93
- ConZF · github · 2026-09-18 · 17 upvotes · similarity 0.68
- Stacks · github · 2026-11-04 · 127 upvotes · similarity 0.66
- matrix-multiplication-all-fields · github · 2026-10-07 · 27 upvotes · similarity 0.63
- Weil · github · 2026-11-06 · 19 upvotes · similarity 0.62
- Salt · hn · 2026-07-01 · 44 upvotes · similarity 0.60
- genpark-robinson-first-order-unification-skill · github · 2026-09-10 · 7 upvotes · similarity 0.58
- VeriTile · github · 2026-09-24 · 24 upvotes · similarity 0.58
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