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feat: continuousLinearMapAt_apply_of_mem#37537

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feat: continuousLinearMapAt_apply_of_mem#37537
grunweg wants to merge 2 commits intoleanprover-community:masterfrom
grunweg:simps-covder

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@grunweg grunweg commented Apr 2, 2026

Also mark (Pre)Trivialization.coe_linearMapAt_of_mem simp. From #36036, i.e. the path towards Ehresmann connections.

Co-authored by: Patrick Massot [email protected]


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@grunweg grunweg added the awaiting-CI This PR does not pass CI yet. This label is automatically removed once it does. label Apr 2, 2026
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grunweg commented Apr 2, 2026

Let's benchmark, for good measure (pun intended). I don't expect any difference, as this file is close to the leaves.

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grunweg commented Apr 2, 2026

!bench

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github-actions bot commented Apr 2, 2026

PR summary 83b8b5c245

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff

+ continuousLinearMapAt_apply_of_mem

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).

@grunweg grunweg added t-differential-geometry Manifolds etc t-topology Topological spaces, uniform spaces, metric spaces, filters labels Apr 2, 2026
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leanprover-radar commented Apr 2, 2026

Benchmark results for 9170bd1 against 83b8b5c are in. There are no significant changes. @grunweg

  • build//instructions: -3.6G (-0.00%)

Small changes (1🟥)

  • 🟥 build/module/Mathlib.Lean.Elab.InfoTree//instructions: +126.4M (+5.02%)

Also mark (Pre)Trivialization.coe_linearMapAt_of_mem simp,
and use this to golf two proofs.
From leanprover-community#36036, i.e. the path towards Ehresmann connections.

Co-authored by: Patrick Massot <[email protected]>
Each of these involves the newly added simp lemma.
@github-actions github-actions bot removed the awaiting-CI This PR does not pass CI yet. This label is automatically removed once it does. label Apr 2, 2026
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