leanprover-community / leanprover-community/mathlib4

`norm_num` functionality tracking issue

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#2,136 3 comments 0 reactions 1 assignee View on GitHub

@thorimur is already working on this.

Since Feb 7, 2023.

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Description

This is an issue to track the implementation of norm_num extensions.

Additions of needed (or completed) functionality to the list are welcome; feel free to edit!

Mainstream functionality

  • zpow#9875
  • #8828
Nat operations
Int operations
  • Int.gcd #3923
  • Int.lcm #3923
  • Int.mod #8534
  • Int.emod
  • Int.div #8534
  • ∣ (divides) #8534

Logic

  • And
  • Or
  • Iff
  • Xor
  • →

Constructors and constructor-like operations

Most of these are edge cases (with the exception of ofScientific), but do occasionally appear.

  • Int.ofNat #1707
  • Int.negSucc
  • ofScientific #1707
  • Rat.mk'
  • Rat.mk
  • mkRat #1707
  • divInt
  • normalize
  • maybeNormalize

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.

Assessment

This issue has not been assessed yet.

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