This is now https://trac.sagemath.org/ticket/23324
Am Sonntag, 25. Juni 2017 19:47:36 UTC+2 schrieb vdelecroix:
>
> On 25/06/2017 19:10, 'Martin R' via sage-devel wrote:
> > I just noticed that Set([[], []]).cardinality() yields 2. In earlier
> > versions, a TypeError: unhashable type: 'list' w
On 25/06/2017 19:10, 'Martin R' via sage-devel wrote:
I just noticed that Set([[], []]).cardinality() yields 2. In earlier
versions, a TypeError: unhashable type: 'list' was raised.
I think the behaviour was modified
in https://trac.sagemath.org/ticket/22597.
Is this intended? It seems to me
a set theorist would be very happy :)
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I just noticed that Set([[], []]).cardinality() yields 2. In earlier
versions, a TypeError: unhashable type: 'list' was raised.
I think the behaviour was modified
in https://trac.sagemath.org/ticket/22597.
Is this intended? It seems to me that it would be safer if cardinality
would raise an
