SM Ryan wrote:   
   > A formal grammar is a formal language to describe a formal language. ...   
      
   A "grammar" (formal) is one, of many (formal and informal), precise   
   (formal) description of a language (syntax not semantic).   
      
   A "syntax of a formal language" defines exactly what symbols (language   
   symbols) sequences are correct expressions (words or sentences) of the   
   language, and associates a concrete syntax tree, containing all the   
   language terminals, to them.  So, a "grammar" is one (of many) way of   
   description "syntax of a formal language".  Thats mens, in many   
   situations both meanings can are equivalent bat not always.   
      
   Theodosios CHIMONIDIS.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)