leanprover / leanprover/reference-manual

example of implemented_by attribute with opaque declaration

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Lean
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Description

What question should the reference manual answer?

Section 7.3 mention the attribute implemented_by used in opaque definitions. There is no link to further documentation about this attribute and no example on how to use it.

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First steps

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  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 Section 7.3 of the reference manual and inspect the discussion of opaque definitions and the implemented_by attribute. Add a link to the relevant documentation and an example showing how to use the attribute; done means both the link and usage example answer the stated question.

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
Clearly specified
Newbie friendliness
48/100

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