#14019: equality is broken for Posets
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Reporter: ncohen | Owner: sage-combinat
Type: defect | Status: needs_info
Priority: major | Milestone: sage-6.4
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Nathann Cohen | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/andrew.mathas/ticket/14019 | d10a6efa75561632cdc76b2c98c5eca4312372ec
Dependencies: | Stopgaps: #14185
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Changes (by ncohen):
* cc: jmantysalo (added)
Comment:
Hello,
20 months ago, I thought that this problem will be fixed in a month.
Yesterday Jori created ticket #17051 which is a bug report, apparently
linked with what this ticket was meant to address #14019.
Today is saturday. Unless somebody has a different way to solve the
problem and is meaning to solve it during the week, I will create a ticket
here that makes `.relabel()` return a Poset.
You cannot defend that Posets are both `UniqueRepresentation` and mutable.
So `.relabel()` cannot change self. There will be no deprecation, for it
is a bugfix.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/14019#comment:32>
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