RE: [sv-ac] some thoughts on non-vacuity

From: Bustan, Doron <doron.bustan_at_.....>
Date: Mon Jan 14 2008 - 07:10:40 PST
Hi John,

I don't understand why

>>
>>  vacuous_false = 0 |-> 0.
>>  vacuous_true = not(vacuous_false)
>>
>>Assume that w is a non-empty natural word (i.e., no letter of w is
\top or
>>\bot).
>>Then
>>
>>  w |/= vacuous_false and w |/=^{non} vacuous_false
>>  w |=  vacuous_true  and w |/=^{non} vacuous_true
>>
>>

Isn't 0 |-> 0 a tautology? 

Doron

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Received on Mon Jan 14 07:56:23 2008

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