lean-ja / lean-ja/lean-by-example

`Nat.pow_zero` を grind がわかってくれないのはなぜか?

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Description

@[grind =]
theorem Nat.Grind.pow_zero {n a : Nat} (h : a = 0) : n ^ a = 1 := by
  simp_all

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the displayed theorem in a Lean environment and checking how the @[grind =] annotation handles Nat.pow. Done means explaining why the theorem is not recognized by grind and documenting or identifying the relevant limitation.

Written by the indexing model from the issue text.

Assessment

Domain
devtools
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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