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Bad implication to a representation #862

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fingolfin opened this issue Aug 16, 2022 · 1 comment · Fixed by #863
Closed

Bad implication to a representation #862

fingolfin opened this issue Aug 16, 2022 · 1 comment · Fixed by #863
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@fingolfin
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This should not be done:

InstallTrueMethod(IsDualSemigroupRep,
                  IsSemigroup and IsDualSemigroupElementCollection);

A representation should never be implied like this. See also gap-system/gap#3006
@fingolfin fingolfin mentioned this issue Aug 16, 2022
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@james-d-mitchell
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Eek! Will resolve this tomorrow!

@james-d-mitchell james-d-mitchell added the bug Label for issues or PR which report or fix bugs label Aug 16, 2022
@flsmith flsmith mentioned this issue Aug 17, 2022
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make IsDualSemigroupRep not a representation flsmith/Semigroups
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@fingolfin @james-d-mitchell