leanprover-community / leanprover-community/mathlib4
Tracking issue: extensions to the unused*In linter
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- Dominant language
- Lean
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- Forks
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Description
MetricSpacevsMetrisableSpace: an old attempt was made in #17519 (which did not quite work)MeasureSpacevsMeasurableSpaceInvertibleandUnique: see #17518 for an old attempt
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 by locating the unused*In linter and read the issue references #17519 and #17518 to understand the earlier attempts. Review how the linter handles the listed pairs, then implement and validate support for MetricSpace/MetrisableSpace, MeasureSpace/MeasurableSpace, Invertible, and Unique.
Written by the indexing model from the issue text.
Assessment
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100