leanprover-community / leanprover-community/mathlib4
to_additive doesn't support match
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- Lean
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Description
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked Zulip report and locate the implementation or entry point for to_additive. Reproduce the two reported errors involving match, then consider the issue complete when that construct is supported without those errors and the relevant checks pass.
Written by the indexing model from the issue text.
Assessment
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100