chore(CategoryTheory/Limits): limit properties of MorphismProperty.Under

[chrisflav]

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[github-actions]

PR summary 2fa7ed1c4d

Import changes for modified files

Dependency changes

File	Base Count	Head Count	Change
Mathlib.CategoryTheory.MorphismProperty.Comma	436	437	+1 (+0.23%)

Import changes for all files

Files	Import difference
4 files Mathlib.Algebra.Category.CommAlgCat.FiniteType Mathlib.CategoryTheory.Comma.Over.StrictInitial Mathlib.CategoryTheory.MorphismProperty.Comma Mathlib.CategoryTheory.MorphismProperty.OverAdjunction	1

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Declarations diff

+ StructuredArrow.closedUnderColimitsOfShape_discrete_empty
+ StructuredArrow.isClosedUnderLimitsOfShape
+ Under.closedUnderColimitsOfShape_discrete_empty
+ Under.closedUnderColimitsOfShape_pushout
+ instance (priority := 900) [HasPushouts T] [P.IsStableUnderComposition]
+ instance : CreatesFiniteColimits (Under.forget P ⊤ X)
+ instance : PreservesFiniteColimits (Under.forget P ⊤ X)
+ instance [HasFiniteWidePushouts T] : HasFiniteColimits (P.Under ⊤ X)
+ instance [HasPushouts T]
+ instance [P.ContainsIdentities] (Y : P.Under ⊤ X) :
+ instance [P.ContainsIdentities] : HasInitial (P.Under ⊤ X)
+ instance [P.ContainsIdentities] [P.RespectsIso] :
+ inverseImage_op_overObj
+ inverseImage_op_underObj
+ mkIdInitial
+ structuredArrow_iso_iff
+ under_iso_iff

You can run this locally as follows

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

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

The doc-module for scripts/pr_summary/declarations_diff.sh contains some details about this script.

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Increase in tech debt: (relative, absolute) = (3.00, 0.00)

Current number	Change	Type
6522	3	backward.isDefEq.respectTransparency

Current commit b8bc92263c
Reference commit 2fa7ed1c4d

You can run this locally as

./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).