An interval [ a , b ] is defined as (free definition) "Every number greater than a and lesser than b" (definition). So, if a=2 and b=1, there's no number with such condition. That's a valid definition for every set with a ">" operator, so it could work with any set (class) with ">" defined and a valid "generator" (++) (This last statement is only theory, someone with time to test).
In reply to Re: the '..' operator and decreasing values
by deibyz
in thread the '..' operator and decreasing values
by eXile
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |