[rules-users] Not and forall operator behaviour

[rogerL]

Are the two following statements not equivalent?

    forall($msg:Message()
            Message(this==$msg, sent==true, status!=State._INITIALIZED)
    )


    not( Message(sent==false, status==State._INITIALIZED) )

My understanding is that they both ensure that there are no Message objects
in WM with property 'sent' set to false and property 'status' set to
State._INITIALIZED.

In my situation, the 'forall' approach is working as expected, the 'not'
approach fires once (when there are no Message objects in WM) and never
again.

Appreciate if anyone could shed light on this.



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