RE: [sv-ac] LTL 1932

From: Bustan, Doron <doron.bustan_at_.....>
Date: Mon Oct 08 2007 - 23:20:38 PDT
Hi Tej,

 

>>I think it is misleading to say that 'implies' is similar to '->' when
both operands are boolean

>>because

>>1. implies can still result in vacuous matches whereas '->' cannot.

 

[DB]I disagree, with Boolean operands it will never be vacuous. The
Boolean expressions themselves are no vacuous and "not' and "or" 

do not turn non-vacuous into vacuous.

 

>>2. when property_expr1 is 'x', property_expr1 -> property_expr2 will
be 'x' whereas property_expr1 implies property_expr2 will be false.

 

[DB] I agree that it is a bit misleading, do you think that
(property_expr1 === 1) -> (property_expr2 === 1) is better?

or should we remove this sentence completely?

 

Thanks

 

Doron

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Received on Mon Oct 8 23:21:25 2007

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