lean-ja / lean-ja/lean-by-example
`partial_fixpoint` の節に追加: なんで不動点なのか
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- Dominant language
- Lean
- Stars
- 188
- Forks
- 15
- Avg merge
- 9h 8m
- Merged PRs (30d)
- 6
Description
なんでわざわざ再帰呼びだしという分かりやすそうなものを、高階関数の不動点というわけのわからんものに変換するのか？ という根本的な疑問にまだ応えられていない。なにかしら答えを用意しておきたい。
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 reading the existing partial_fixpoint section and the surrounding explanation. Clarify why a straightforward recursive call is transformed into a higher-order fixed-point formulation, using only concepts already introduced there. The work is done when the section directly answers this motivation for readers.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100