intersect and union infix commands

[compsystems]

Hello

The intersect and union infix commands are not shown in the catalog, synonym of UNION() and INTERSECT() function cmds, although they should also be incorporated synonyms in unicode ∩ ∪ (ASCII notation is fashion from the past.), thee ∩ ∪ symbols closer to the real notation of the math textbooks

Example of use

Greatest Common Divisor (max, intersect, divisor)

max( idivis(48) intersect idivis(72) ) [enter] returns 24
gcd(48,72) [enter] returns 24

max( idivis(48) ∩ idivis(72) )