VMS Help PASCAL, Predeclared Routines, Char Strng, LT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  This function returns a Boolean  value  that  specifies  if  the
  first  parameter is less than the second parameter, according to
  the ASCII values of the strings' characters.

  Syntax:

     LT( str1,str2 )

  The  parameters  'str1'  and  'str2'  must  be  character-string
  expressions.   Compaq  Pascal  does not pad shorter strings with
  blanks.