spivak-lean
Michael Spivak's Calculus formalized in Lean 4: every theorem and every problem of all 30 chapters and 9 appendices, in both the 3rd and 4th editions
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
GITHUB · launched Sep 26, 2026 · 42 upvotes (top 20%) · 2 views
Niche: mathematical solvers and optimization engines · 80 launches, 2 in the last 7 days · Explore this niche →
Category and tags
- Education
- Dev tools
- Developer
- 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 Formalizing hundreds of complex calculus theorems and problems across an entire standard textbook into Lean 4 requires deep graduate-level mathematical rigor and specialized interactive theorem proving skills.
What it would actually take: This project requires advanced formal verification in Lean 4 and Mathlib. The builder must translate informal mathematical prose and epsilon-delta proofs into strict dependent type theory, manually guiding tactics and dealing with complex real analysis formalizations where automated theorem provers and current LLMs frequently fail or hallucinate invalid proof steps.
Competitors
Other products that read as similar to this one : 1012 launches clear the similarity bar, closest 8 shown.
Attention rank: #236 of 1013 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 332 days after the earliest competitor.
- Spivak's Calculus formalized in Lean 4 · hn · 2026-09-26 · 22 upvotes · similarity 0.93
- ConZF · github · 2026-09-18 · 17 upvotes · similarity 0.64
- Stacks · github · 2026-11-04 · 127 upvotes · similarity 0.60
- matrix-multiplication-all-fields · github · 2026-10-07 · 27 upvotes · similarity 0.56
- Weil · github · 2026-11-06 · 19 upvotes · similarity 0.55
- Functional Programming Strategies, the book I'm working on · hn · 2026-07-01 · 5 upvotes · similarity 0.55
- derive-math-tool · github · 2026-11-10 · 102 upvotes · similarity 0.54
- julia-in-lean · github · 2026-10-25 · 13 upvotes · similarity 0.54
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.