lean-ja / lean-ja/lean-by-example
`and_intros` タクティクを紹介する
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タクティク
- Dominant language
- Lean
- Stars
- 188
- Forks
- 15
- Avg merge
- 9h 8m
- Merged PRs (30d)
- 6
Description
variable (P Q R S : Prop)
example : P ∧ Q ∧ R ∧ S := by
and_intros
· show P
sorry
· show Q
sorry
· show R
sorry
· show S
sorry
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
No file or test is named; start by locating the documentation entry for tactics in the repository and use the supplied Lean example as the reference. Introduce what and_intros does and ensure the example's four subgoals are represented. Done means the tactic is documented clearly in the appropriate page.
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
- 42/100