leanprover-community / leanprover-community/leanprover-community.github.io

Incomplete list of common tactics in tactic cheatsheet

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Description

On the Learning Lean 4 page, it says

You can download the tactic cheatsheet (pdf) for a reference of most common tactics.

However, the list in the PDF appears to be incomplete. Notably, several commonly used tactics are missing, including:

  • contrapose
  • wlog
  • generalize

It might be helpful to review and expand the cheatsheet to better reflect the range of tactics frequently encountered in practice.

Thanks for your work on this resource!

Contributor guide

No contributing guide indexed for this repository

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 with the linked Learning Lean 4 page and tactic cheatsheet PDF, then compare the PDF's contents with the tactics named in the issue. Done means the cheatsheet has been reviewed and the missing commonly used tactics are represented in the updated reference.

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
48/100

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