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feat(Topology): sheafRestrict is a right adjoint#41088

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Brian-Nugent:sheafRestrict-rightadjoint
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feat(Topology): sheafRestrict is a right adjoint#41088
Brian-Nugent wants to merge 1 commit into
leanprover-community:masterfrom
Brian-Nugent:sheafRestrict-rightadjoint

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@github-actions github-actions Bot added the t-topology Topological spaces, uniform spaces, metric spaces, filters label Jun 26, 2026
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github-actions Bot commented Jun 26, 2026

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PR summary 530994c892

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff (regex)

+ instance {X : TopCat} (U : Opens X)

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 530994c).

  • +1 new declarations
  • −0 removed declarations
+TopologicalSpace.Opens.instIsRightAdjointSheafSubtypeCarrierMemGrothendieckTopologySheafRestrictOfOverOverOverPullback

No changes to strong technical debt.

No changes to weak technical debt.

Current commit 530994c892
Reference commit 571b8a8e54

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).

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2 participants