#5664: Bugs in PermutationGroup_subgroup.__cmp__
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Reporter: SimonKing | Owner: SimonKing
Type: defect | Status: new
Priority: critical | Milestone: sage-3.4.1
Component: group_theory | Keywords: comparison subgroup
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Comment(by SimonKing):
I just observed another detail that I found strange.
Note that in {{{PermutationGroup_generic.__cmp__(self,right)}}}, the
return value is {{{right._gap_().__cmp__(self._gap_())}}}, not
{{{self._gap_().__cmp__(right._gap_())}}}.
By consequence, we have
{{{
sage: G = PermutationGroup([[(1,2)]])
sage: H = PermutationGroup([[()]])
sage: G<H
True
}}}
Is this something that we want? I also ask on the mailing list, as this
seems fundamental to me.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5664#comment:6>
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