#11506: Fix the infinity ring.
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Reporter: vbraun | Owner: AlexGhitza
Type: defect | Status: new
Priority: critical | Milestone: sage-5.13
Component: algebra | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Changes (by pbruin):
* priority: major => critical
Comment:
The following is an extremely serious error:
{{{
sage: Infinity in RR
True
}}}
This is mathematical nonsense.
(Besides, it contradicts the documentation of the infinity "ring", the
parent of `Infinity`, which states that the infinity "ring" does not have
a coercion map to any actual rings.)
`Infinity in CC` does correctly return `False`.
See also https://groups.google.com/forum/#!topic/sage-devel/sHyLWNcItl4 .
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Ticket URL: <http://trac.sagemath.org/ticket/11506#comment:7>
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