leanprover-community / leanprover-community/mathlib4
simps: generate all lemmas but one
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Description
Could we have a way to say "produce all projects except the following", e.g. something like
@[simps -inverse_map_fiber_down_down]. When there is just one to remove it is annoying to have to read through the output of@[simps?], and collecting the complement! Also hard to understand afterwards.
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 the simps command and proposes an exclusion syntax, but it names no implementation file, test, or entry point. Start by locating the simps syntax and lemma-generation code and its existing tests; done means supporting an exclusion such as @[simps -inverse_map_fiber_down_down] while preserving current generation behavior.
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