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 | 1 | initial version |
Currently in Sage, SetPartitions are not proper Parent and uses the old deprecated CombinatorialClass framework. This framework was writen before UniqueRepresentation. As a consequence
sage: isinstance(SetPartitions(5), UniqueRepresentation)
False
We are currently in the process of removing CombinatorialClass and cleaning the code depending of it. See for example trac ticket #13552, #12913, #9265. Nothing is currently done on set partitions.
