Set theory on HP Prime

[Alberto Candel]

(05-07-2014 03:43 PM)Helge Gabert Wrote:  

(05-07-2014 06:57 AM)parisse Wrote:  Sets are supported: the infix operators are union, minus, intersect, and you should use set[ ] instead of {} or [ ] to avoid confusion with lists/vectors, e.g. for ==
set[1,2]==set[2,1]
[1,2]==[2,1]

Good to know! By the way, minus and union don't seem to appear in the toolbox catalog (intersect is in there, though).

There are the standard math symbols for union and intersection in the Chars list, but they do not work as such.