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PR summary f2b8c00580

Import changes for modified files

No significant changes to the import graph

## 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>

Declarations diff (Lean)

✅ Lean-aware diff — post-build, computed from the Lean environment (commit f2b8c00).

• +2 new declarations
• −0 removed declarations

+MeasurableSpace.map_comap_eq_of_surjective
+measurable_comap_iff_right

No changes to strong technical debt.

No changes to weak technical debt.

Current commit f2b8c00580
Reference commit 005f0aa67b

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).

✅ PR Title Formatted Correctly

The title of this PR has been updated to match our commit style conventions.
Thank you!

-awaiting-author

Since the PR notes that there is no current application in mind, would it be worth adding a short docstring or example for measurable_comap_iff_right, or is the nearby placement next to measurable_comap_iff considered enough?

Given that measurable_comap_iff currently has no docstring, I'm comfortable with measurable_comap_iff_right also having no docstring. The Mathlib convention generally seems to be to reserve docstrings for methods that one anticipates to be frequently used, as opposed to supplying docstrings for even the most minor of theorems.

Pull request successfully merged into master.

Build succeeded:

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