A word of advice EQ domain issues

For example, you want to write the following formula

a letter A is the subscript (0,1].

Note that the subscript is a semi-closed half-open interval.I would like to ask how to write it?

(EQ A \ s \ do3 ((0,1]))

would be a mistake.

is the editor of the mathematical formula for it??
so take a look at this / search? hl = zh-CN & newwindow = 1 & q = word + +% E5% 85% AC% E5% BC% 8F% E7% BC% 96% E8% BE% 91% E5% 99% A8 & btnG = Google +% E6% 90% 9C% E7% B4% A2 & meta = lr% 3Dlang_zh-CN & aq = f & oq =