lean-ja / lean-ja/lean-by-example
`run_tac` 使用例
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コード例
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- Dominant language
- Lean
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Description
open Lean Meta Elab Tactic
example {α} (a : α) (f : α → α) (h : ∀ a, f a = a) : f (f a) = a := by
run_tac
let g ← getMainDecl
logInfo m!"the type is {g.type}"
-- the type is f (f a) = a
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Start with the supplied Lean run_tac example and inspect how examples are organized in the repository. Confirm where this usage example belongs and how examples are checked or rendered. Done means the example is included in the appropriate learning material and remains valid.
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Assessment
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- documentation
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100