Yes, the extra "not" in front of forall is a mistake and needs to
be removed. And yes, that is how drools and (AFAIK) all Rete based
engines implement it.

    Edson

2010/11/16 Wolfgang Laun <wolfgang.l...@gmail.com>:
> Expert manual:
>   not( forall( p1 p2 p3...)) is equivalent to writing not(p1 and
> not(and p2 p3...))
> I think this is incorrect; it should read
>   forall( p1 p2 p3...) is equivalent to writing not(p1 and not(and p2 p3...))
>
> Is this also the way forall is actually implemented?
>
> -W
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-- 
  Edson Tirelli
  JBoss Drools Core Development
  JBoss by Red Hat @ www.jboss.com

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