feat(GroupTheory/Perm/Fin): Add (cycleIcc i j) ∘ j.succAbove = i.succAbove for i ≤ j

[yuanyi-350]

• proves (cycleIcc i j) ∘ j.succAbove = i.succAbove for i ≤ j, giving the expected succAbove compatibility for cycleIcc

[github-actions]

PR summary bda55fe31c

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

+ cycleIcc_comp_succAbove

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.

[robin-carlier]

Thanks!

maintainer merge

[github-actions]

🚀 Pull request has been placed on the maintainer queue by robin-carlier.