leanprover-community / leanprover-community/mathlib4
Check notation precedences
Open
Nobody has claimed this yet.
- Dominant language
- Lean
- Stars
- 4.1k
- Forks
- 1.7k
- PR merge metrics
- No merged PRs in 30d
Description
The ∉ precedence was wrong: https://github.com/leanprover-community/mathlib3port/commit/d3886c253aee234456e6ee149c6a1bea9570c689#r67303397
Other notation probably have the wrong precedence as well.
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 referenced mathlib3port commit and review comment, then inspect the notation precedence declarations affected by the ∉ correction. Audit the other notation precedences for similar errors. Done means the incorrect precedences are corrected and the relevant behavior is verified.
Written by the indexing model from the issue text.
Assessment
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100