STRING/= ======== Syntax: (string/= <string1> <string2> :START1 <number> :END1 <number> :START2 <number> :END2 <number>) This function compares (parts of) strings with differentiation between upper- and lowercase- characters. It returns T, when the strings are not equal, otherwise NIL. example: >(string/= "Computer" "Computer") NIL