feat(Topology/Category): TopCat.uliftFunctor preserves all limits and colimits#34993
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chrisflav wants to merge 1 commit intoleanprover-community:masterfrom
Open
feat(Topology/Category): TopCat.uliftFunctor preserves all limits and colimits#34993chrisflav wants to merge 1 commit intoleanprover-community:masterfrom
TopCat.uliftFunctor preserves all limits and colimits#34993chrisflav wants to merge 1 commit intoleanprover-community:masterfrom
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chrisflav
commented
Feb 8, 2026
PR summary 8115783e28Import changes exceeding 2%
|
| File | Base Count | Head Count | Change |
|---|---|---|---|
| Mathlib.Topology.Category.TopCat.ULift | 734 | 771 | +37 (+5.04%) |
Import changes for all files
| Files | Import difference |
|---|---|
Mathlib.AlgebraicTopology.TopologicalSimplex |
2 |
Mathlib.Topology.Category.TopCat.ULift |
37 |
Declarations diff
+ instance : PreservesColimitsOfSize.{w', w} uliftFunctor.{v, u} := by
+ instance : PreservesLimitsOfSize.{w', w} uliftFunctor.{v, u} := by
+ nonempty_isColimit_iff_eq_coinduced
+ nonempty_isLimit_iff_eq_induced
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).
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