leanprover-community / leanprover-community/mathlib4
simps generates lemmas for propositions
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- Dominant language
- Lean
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Description
When the field is sometimes a proposition and sometimes not, e.g. PLift.
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
The issue names simps and PLift but no files or tests. Start by locating the simps implementation and reproducing the proposition/non-proposition field case; done means inappropriate generated lemmas are no longer produced, with a regression test covering the case.
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
- 35/100