# Rocq

25 Hacker News commenters recommended Rocq and 3 criticized it, November 2025 to November 2026. It was recommended in 10 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Free proof assistant for formally verifying programs and math, with a rigorous dependently typed design. Critics say it is mostly academic and Lean has overtaken it.

## Why people recommend it

- Strong tool for formal verification (5 comments): "Lean doesn’t have a monopoly on verification languages. Dafney, Rocq, Why3, ATS, Agda, Idris… these all can do it too." ([source](https://news.ycombinator.com/item?id=47244826)) "interactive proof assistants like Lean or Rocq will help to mitigate at least this issue" ([source](https://news.ycombinator.com/item?id=46134513)) "multiple startups that have had some pretty impressive performance with Lean and Rocq" ([source](https://news.ycombinator.com/item?id=46585557))
- Rigorous dependently typed design (2 comments): "look into Rocq (which uses CoIC, like Lean, but is more rigorous about it)" ([source](https://news.ycombinator.com/item?id=46925972)) "Rocq (dependently typed), which also has a great track record" ([source](https://news.ycombinator.com/item?id=45795683))
- Checks AI-generated code (2 comments): "interactive proof assistants like Lean or Rocq will help to mitigate at least this issue" ([source](https://news.ycombinator.com/item?id=46134513)) "we've generated millions of lines of Lean 4, TLA+, and Rocq" ([source](https://news.ycombinator.com/item?id=50316022))

## Alternatives hackers recommend

- [Lean 4](https://hackerapproved.com/p/lean.md): 268 recommend
- [Coq](https://hackerapproved.com/p/coq.md): 24 recommend
- [Agda](https://hackerapproved.com/p/agda.md): 19 recommend
- [Isabelle](https://hackerapproved.com/p/isabelle.md): 14 recommend
- [Metamath](https://hackerapproved.com/p/metamath.md): 14 recommend

## Cite as

Hacker Approved, "Rocq", https://hackerapproved.com/p/rocq/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).