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Algebruh

Cross-check arithmetic claims with Z3, cvc5, and Lean

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HN · launched Aug 8, 2026 · 14 upvotes (top 32%) · 0 views

Niche: mathematical solvers and optimization engines · 80 launches, 2 in the last 7 days · Explore this niche →

Category and tags

  • Horizontal
  • Observability & eval
  • Developer
  • AI feature
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

Partial Parsing arithmetic claims and delegating them to CLI or API bindings of SMT solvers (Z3, cvc5) is straightforward, but translating natural language or code claims into formal Lean 4 theorems and managing theorem proving environments requires formal verification knowledge.

What it would actually take: Requires a parser/transpiler that maps arithmetic specifications into SMT-LIB2 format for Z3 and cvc5, combined with a code generator that produces syntactically valid Lean 4 definitions and tactic scripts. The backend must orchestrate sandboxed executions of the solver binaries and Lean compiler environment, verifying returned proofs or countermodels. Deep background in formal methods and automated theorem proving is necessary.

Discussion

2 comments analyzed.

Concerns raised: Unclear use cases and motivation for the tool, Lacks explanation of when/why to use it over alternatives

Feature requests: Better documentation explaining use cases and advantages

Competitors

Other products that read as similar to this one : 2293 launches clear the similarity bar, closest 8 shown.

Attention rank: #682 of 2294 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 283 days after the earliest competitor.

  • ConZF · github · 2026-09-18 · 17 upvotes · similarity 0.63
  • Salt · hn · 2026-07-01 · 44 upvotes · similarity 0.62
  • matrix-multiplication-all-fields · github · 2026-10-07 · 27 upvotes · similarity 0.59
  • integer-mult-kappa · github · 2026-10-08 · 27 upvotes · similarity 0.58
  • Samosa · hn · 2026-10-27 · 13 upvotes · similarity 0.58
  • vearl · github · 2026-10-10 · 15 upvotes · similarity 0.57
  • integer-mult-bounds · github · 2026-10-07 · 182 upvotes · similarity 0.57
  • metalean · github · 2026-09-18 · 11 upvotes · similarity 0.56

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