[Merged by Bors] - chore(Data/Nat/GCD/Basic): automated extraction from #40597

[mathlib-splicebot]

This PR was automatically created from PR #40597 by @xroblot via a review comment by @tb65536.

[mathlib-splicebot]

maintainer merge

Requested by @tb65536 via splice-bot from #40597.

[github-actions]

🚀 Pull request has been placed on the maintainer queue by tb65536 (via splice-bot from #40597).

[github-actions]

PR summary fcbee48d36

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

Declarations diff (regex)

+ div_dvd_div_iff_left
+ div_dvd_div_iff_right

You can run this locally as follows

## from your `mathlib4` directory:
git clone https://github.com/leanprover-community/mathlib-ci.git ../mathlib-ci

## summary with just the declaration names:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh in the mathlib-ci repository contains some details about this script.

Declarations diff (Lean)

✅ Lean-aware diff — post-build, computed from the Lean environment (commit fcbee48).

• +2 new declarations
• −0 removed declarations

+Nat.div_dvd_div_iff_left
+Nat.div_dvd_div_iff_right

---

No changes to strong technical debt.

No changes to weak technical debt.

Current commit fcbee48d36
Reference commit 130d6f7afe

This script lives in the mathlib-ci repository. To run it locally, from your mathlib4 directory:

git clone https://github.com/leanprover-community/mathlib-ci.git ../mathlib-ci
../mathlib-ci/scripts/reporting/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[jcommelin]

Thanks 🎉

bors merge

[mathlib-bors]

Pull request successfully merged into master.

Build succeeded:

• ci (staging) / Lint style
• ci (staging) / Build
• ci (staging) / Test and lint
• ci (staging) / Post-Build Step
• ci (staging) / Post-CI job