leanprover-community / leanprover-community/iris-lean
Investigate constructions fixed at `Type`
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- Dominant language
- Lean
- Stars
- 218
- Forks
- 63
- Avg merge
- 1d 23h
- Merged PRs (30d)
- 22
Description
Countable and ConstOF are pinned at universe level 1. Generalizing constOF seems to break things downstream (at the time of writing, in GhostMap). It think the root of the issue might have to do with all universes in a BundledGFunctors needing the same universe, but I'm not 100% sure. Either way, this should be investigated sometime.
Contributor guide
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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
Read the definitions and uses of Countable, ConstOF, constOF, BundledGFunctors, and GhostMap first. Investigate whether the shared universe constraint explains the downstream breakage, then document the required scope and confirm what would count as a safe generalization.
Written by the indexing model from the issue text.
Assessment
- Domain
- compilers
- Issue type
- Refactor
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100