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[ refactor ] deprecate Algebra.Structures.IsGroup.{uniqueˡ-⁻¹|uniqueʳ-⁻¹}
with knock-ons for Algebra.Module.*
#2571
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Latest commit e12f942 updates the PR to propagate 'corresponding' changes to Algebra.Module.Structures and Algebra.Module.Properties.*, with suitable additional modules in the latter hierarchy, and 'corresponding' name choices for |
Algebra.Structures.IsGroup.{uniqueˡ-⁻¹|uniqueʳ-⁻¹}
Algebra.Structures.IsGroup.{uniqueˡ-⁻¹|uniqueʳ-⁻¹}
with knock-ons for Algebra.Module.*
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Apart from my single comment, looks good!
Phew, I think that's all fixed now. |
This is a v2.3-compatible non-
breaking
fix for theGroup
uniqueness of inverses part of #2502 , avoiding the larger-scale v3.0 structural changes proposed there.NB. the wrinkle is that an
Bundles.AbelianGroup
has to be created on the fly in order to exploit itsProperties
, but that can (perhaps!?) be eliminated as part of a downstream refactoring. UPDATED have now managed to eliminate this thanks to the prompt from @MatthewDaggitt below!