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

fin_cases タクティクを紹介する

Open
#1,822 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

タクティク
Dominant language
Lean
Stars
188
Forks
15
Avg merge
9h 8m
Merged PRs (30d)
6

Description

import Mathlib.Tactic

example (i : Fin 2) : i = i * i := by
  fin_cases i <;> aesop

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

No file or test is named. Start by locating the repository's existing tactic-introduction examples and checking the provided Lean snippet with fin_cases and aesop; done means adding a clear introduction to fin_cases using this example in the appropriate documentation location.

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
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.