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lean-leanfran

Write and prove functions in Lean 4, run them as Rust, Python, TypeScript and Clojure

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GITHUB · launched Nov 8, 2026 · 19 upvotes (top 89%) · 0 views

Niche: software development frameworks · 154 launches, 2 in the last 7 days ▼ -89% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

No Bridging Lean 4 theorem proving with Rust and building verification on Aeneas requires expertise in formal methods and language-level tooling that vibe coding can't provide.

What it would actually take: The core is a Lean FFI layer that embeds Lean runtime into Rust safely, plus a translation pipeline that proves properties about Rust code via Aeneas's intermediate representation. Building it takes experienced formal-methods and compiler engineers who understand both Lean's runtime and Rust's semantics.

Competitors

Other products that read as similar to this one : 676 launches clear the similarity bar, closest 8 shown.

Attention rank: #628 of 677 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 373 days after the earliest competitor.

  • metalean · github · 2026-09-18 · 11 upvotes · similarity 0.58
  • rust-go-compiler · github · 2026-11-02 · 17 upvotes · similarity 0.56
  • RustClamp · ph · 2026-10-24 · 1 upvotes · similarity 0.56
  • TRUST · hn · 2026-05-07 · 178 upvotes · similarity 0.53
  • rust-learning-lab · github · 2026-09-25 · 49 upvotes · similarity 0.53
  • Hybrid-Transpiler · hn · 2025-12-26 · 8 upvotes · similarity 0.53
  • rust-djinn · github · 2026-10-13 · 20 upvotes · similarity 0.53
  • dx-rust · github · 2026-10-28 · 42 upvotes · similarity 0.52

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.