batteries
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feat: `Fin.foldlM` and `Fin.foldrM`
- [x] Depends on #827
Might need minor adjustments after lean4#4304
Git cleanup happened. @digama0's docstring correction was finally correctly applied.
The basic definitions should eventually be moved to core but that can wait until there is less upstreaming pressure.
Mathlib CI status (docs):
- ✅ Mathlib branch batteries-pr-testing-814 has successfully built against this PR. (2024-10-01 06:54:29) View Log