#14541: Family over enumerated set has wrong category
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Reporter: cnassau | Owner: nthiery
Type: defect | Status:
Priority: minor | needs_review
Component: categories | Milestone: sage-6.1
Keywords: Family, Category of finite | Resolution:
enumerated sets, CartesianProduct | Merged in:
Authors: Christian Nassau | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by ncohen):
The bug reported has been fixed in the meantime by #14772 : permutations
do not use `CombinatorialClass` anymore.
This does not fix the general problem however, and indeed one should not
force the computation of the cardinality of this set unless this
operations has been explicitly requested.
Thus, I upload a git branch which just removes `CombinatorialClass` from
the list of exceptions. There is apparently no reason why all instances of
`CombinatorialClass` should represent finite sets.
(and I personally don't even see why an uncountable set should be said to
be "enumerable", but that's another problem)
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/14541#comment:8>
Sage <http://www.sagemath.org>
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