#15852: make Sequence a FiniteEnumeratedSets
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Reporter: rws | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.2
Component: categories | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Description changed by rws:
Old description:
> The '''category `Sequence`''' is deprecated since 2009 (commit
> `619aa0fa`). If I understand it correctly, the '''class `Sequence`'''
> should instead have the category `FiniteEnumeratedSets` (implying later
> implementation of `InfiniteSequence`).
>
> This ticket is for basing '''class `structure.Sequence`''' on
> `FiniteEnumeratedSets`. The ticket that will remove category `Sequence`
> depends on this.
New description:
The '''category `Sequence`''' is deprecated since 2009 (commit
`619aa0fa`). If I understand it correctly, the '''class `Sequence`'''
should instead have the category `FiniteEnumeratedSets` (implying later
implementation of `InfiniteSequence`).
This ticket is for basing '''class `structure.Sequence`''' on
`FiniteEnumeratedSets`. The ticket that will remove category `Sequence`
depends on this.
The proper Sage way to implement this would also subclass from `Parent`
for a `FiniteSequenceRing` of which sequences would be an element. This
should be addressed in another ticket, while the change from `category
Sequence` to `category FiniteEnumeratedSets` is much less involved.
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Ticket URL: <http://trac.sagemath.org/ticket/15852#comment:1>
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