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writing-rocq-proofs

Use when a proof needs Rocq (formerly Coq), including legacy Coq codebase maintenance and migration through the Coq to Rocq rename. Not for Lean 4: use writing-lean-proofs.

.devin/skills/writing-rocq-proofs/SKILL.md

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# Writing Rocq proofs

## Contract

| Field | Bound contract |
|---|---|
| Trigger | The task is to write, review, or maintain Rocq 9.x proofs, or to migrate a legacy Coq codebase through the Coq to Rocq rename. Methodology stays with proof-driven. |
| Authority | Reversible local: writes only Rocq source files, project build files such as `_CoqProject` and opam files inside the target project, and scoped mechanical Rocq checks; rollback is version control. No remote mutation. |
| Side effect | Local writes to `.v` sources, project build files, and migration edits. No remote mutation. |
| Done | The project compiles under the pinned Rocq version, and `Print Assumptions` on each delivered theorem lists only the axioms the project declares. |

## Inputs

- Rocq 9.2.0, the current release of a monthly cadence that started with 9.0.0 in March 2025, installed with `opam install rocq-prover.9.2.0` or as the Rocq Platform bundle. Docs: rocq-prover.org.