[GAP Forum] Intersection bug?

[m.fayers at qmul.ac.uk]

> I have quite an old version running under windows XP (32 bit), namely
> GAP4P4R4 which behaves as you describe, and another version under 64-bit
> Linux, namly GAP4P4R10, which behaves correctly.

The problem happens for me with the latest GAP (4.4.10) on Windows XP.  So
(as usual) it must be Windows that's the problem.

>> gap> Intersection([1..3],[1..3]);
>> [ 1 .. 3 ]
>> gap> Intersection([-3..-1],[-3..-1]);
>> [ -3 .. -1 ]
>> gap> Intersection([-1..1],[-1..1]);
>> [  ]

Matt.
____________________________________________________
Matthew Fayers

Queen Mary, University of London
Mile End Road
London E1 4NS
U.K.