[Merged by Bors] - feat(CategoryTheory): various properties of transfinite compositions#21843
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[Merged by Bors] - feat(CategoryTheory): various properties of transfinite compositions#21843
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PR summary b391f4b28dImport changes exceeding 2%
|
| File | Base Count | Head Count | Change |
|---|---|---|---|
| Mathlib.CategoryTheory.Limits.Shapes.Preorder.TransfiniteCompositionOfShape | 663 | 722 | +59 (+8.90%) |
| Mathlib.CategoryTheory.MorphismProperty.TransfiniteComposition | 669 | 727 | +58 (+8.67%) |
| Mathlib.AlgebraicTopology.RelativeCellComplex.Basic | 748 | 760 | +12 (+1.60%) |
Import changes for all files
| Files | Import difference |
|---|---|
Mathlib.CategoryTheory.SmallObject.TransfiniteIteration |
4 |
Mathlib.CategoryTheory.SmallObject.TransfiniteCompositionLifting |
10 |
Mathlib.Topology.CWComplex.Abstract.Basic |
11 |
Mathlib.AlgebraicTopology.RelativeCellComplex.Basic |
12 |
Mathlib.CategoryTheory.MorphismProperty.TransfiniteComposition |
58 |
Mathlib.CategoryTheory.Limits.Shapes.Preorder.TransfiniteCompositionOfShape |
59 |
Declarations diff
+ instance (j : J) : HasIterationOfShape (Set.Iic j) C
+ instance (j : J) : IsIso (h.incl.app j)
+ instance : (isomorphisms C).IsStableUnderTransfiniteComposition
+ instance {j : J} (g : ⊥ ⟶ j) : IsIso (h.F.map g) := by
+ instance {j j' : J} (f : j ⟶ j') : IsIso (h.F.map f)
+ isIso
+ ofArrowIso
+ reindex
+ transfiniteCompositionOfShape
+ transfiniteCompositionsOfShape_map_of_preserves
++ iic
++ map
You can run this locally as follows
## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>
## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>The doc-module for script/declarations_diff.sh contains some details about this script.
No changes to technical debt.
You can run this locally as
./scripts/technical-debt-metrics.sh pr_summary
- The
relativevalue is the weighted sum of the differences with weight given by the inverse of the current value of the statistic. - The
absolutevalue is therelativevalue divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).
joelriou
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Feb 13, 2025
Mathlib/CategoryTheory/Limits/Shapes/Preorder/TransfiniteCompositionOfShape.lean
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joelriou
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Feb 15, 2025
Mathlib/CategoryTheory/MorphismProperty/TransfiniteComposition.lean
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joelriou
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Feb 15, 2025
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…sitionOfShape.lean
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Thanks! bors merge |
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Feb 15, 2025
…21843) Some more basic API for transfinite compositions and relative cell complexes is added. It is also shown that isomorphisms are stable under transfinite compositions. After this, it will be possible to start proving the main results of the small object argument. Co-authored-by: Joël Riou <37772949+joelriou@users.noreply.github.com>
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Pull request successfully merged into master. Build succeeded: |
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Some more basic API for transfinite compositions and relative cell complexes is added. It is also shown that isomorphisms are stable under transfinite compositions.
After this, it will be possible to start proving the main results of the small object argument.