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[Merged by Bors] - chore: remove a redundant instance on trees in set theory#38302

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sgouezel:SG_lintTreee
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[Merged by Bors] - chore: remove a redundant instance on trees in set theory#38302
sgouezel wants to merge 1 commit intoleanprover-community:masterfrom
sgouezel:SG_lintTreee

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There is already an instance, and the one declared by hand was not reducibly defeq to it.


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PR summary cc26c21489

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff

- instance (A : Type*) : PartialOrder (tree A) := .ofSetLike (tree A) (List A)

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.


No changes to technical debt.

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).

@github-actions github-actions Bot added the t-set-theory Set theory label Apr 20, 2026
@adomani
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adomani commented Apr 21, 2026

Thanks!

bors merge

mathlib-bors Bot pushed a commit that referenced this pull request Apr 21, 2026
There is already an instance, and the one declared by hand was not reducibly defeq to it.

Co-authored-by: sgouezel <sebastien.gouezel@univ-rennes1.fr>
@mathlib-triage mathlib-triage Bot added the ready-to-merge This PR has been sent to bors. label Apr 21, 2026
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mathlib-bors Bot commented Apr 21, 2026

Pull request successfully merged into master.

Build succeeded:

@mathlib-bors mathlib-bors Bot changed the title chore: remove a redundant instance on trees in set theory [Merged by Bors] - chore: remove a redundant instance on trees in set theory Apr 21, 2026
@mathlib-bors mathlib-bors Bot closed this Apr 21, 2026
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