[Merged by Bors] - chore(Algebra/Star): clean up simp lemmas about bundled star equivalences

[gasparattila]

This PR adds .symm lemmas for these equivalences, allowing simp to reduce applications of their inverses to applications of star.

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[github-actions]

PR summary e648de2d58

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

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Declarations diff

+ Equiv.Perm.symm_star
+ starL'_symm_apply
+ starL_symm_apply
+ starLinearEquiv_symm_apply
+ symm_starAddEquiv
+ symm_starL
+ symm_starL'
+ symm_starLinearEquiv
+ symm_starₗᵢ
+ toAddEquiv_starLinearEquiv
+ toEquiv_starAddEquiv
+ toLinearEquiv_starL
+ toLinearEquiv_starₗᵢ

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.

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No changes to strong technical debt.

No changes to weak technical debt.

Current commit e648de2d58
Reference commit 01e91cd1ce

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).

[themathqueen]

I think you have a merge conflict. Probably from Equiv.star (renamed to Equiv.Perm.star). Please merge master :)

[gasparattila]

-awaiting-author

[themathqueen]

why is this needed now?

[gasparattila]

The default tactic for the continuity fields calls dsimp, which became much stricter recently. I plan to fix this default tactic later, so I would prefer to keep it this way for now. In fact, the real goal of this PR was to remove the manual proofs here.

[themathqueen]

Besides this comment, everything looks good thanks. Let's see what others think about this,

maintainer merge?

[github-actions]

🚀 Pull request has been placed on the maintainer queue by themathqueen.

[riccardobrasca]

Thanks!

bors merge

[mathlib-bors]

Pull request successfully merged into master.

Build succeeded:

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• ci (staging) / Post-CI job