Each line has a different rule Id. That's why A is, well must be, a symbol 
and not a rule.

I.e. this grammar consist of three symbols:
A, B, H

and three rules:
A ::= B
A ::= H
A ::=

The fact that H is "hello!" is irrelevant from pure grammar point of view -;

JD.

Le mercredi 18 juin 2014 21:49:08 UTC+2, Paul Bennett a écrit :
>
> On Wed, Jun 18, 2014 at 12:01 PM, Jeffrey Kegler 
> > A ::= B 
> > A ::= 'hello!' 
> > A ::= # empty 
>
> Point not taken. Point, in fact, blew my mind. More research is required. 
>
>

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