#20105: expand difference of relations before evaluation to a boolean
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Reporter: behackl | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.1
Component: symbolics | Resolution:
Keywords: pynac | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: pynac-0.6.3 | Stopgaps:
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Comment (by rws):
Note that the change in Pynac simply leads to Maxima being called in
`Expression.__nonzero__` (waiting time on first invocation). The issue
will be resolved in general with #19040 because we expand in `__nonzero__`
then. But at the moment it's a bug and it's resolved by your Pynac patch.
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Ticket URL: <http://trac.sagemath.org/ticket/20105#comment:1>
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