[Merged by Bors] - chore: rename invOf lemmas to match inv lemmas

[eric-wieser]

This follows on from #11530

In each case, I've added an example with the Group lemma, to make it easier to keep the names in sync.

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[github-actions]

PR summary e2faa85400

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

+ invOf_mul_cancel_left'
+ invOf_mul_cancel_right'
+ mul_invOf_cancel_left'
+ mul_invOf_cancel_right'
++ invOf_mul_cancel_left
++ invOf_mul_cancel_right
++ mul_invOf_cancel_left
++ mul_invOf_cancel_right
++-- invOf_mul_self_assoc
++-- mul_invOf_mul_self_cancel
++-- mul_invOf_self_assoc
++-- mul_mul_invOf_self_cancel

You can run this locally as follows

## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.

[YaelDillies]

Thanks for the followup!

maintainer merge

[github-actions]

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

[kbuzzard]

Thanks!

bors merge

[mathlib-bors]

Pull request successfully merged into master.

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