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Simeon
:D

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Registered: Aug 2004
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metodo strutturale

Ciao a tutti, volevo sapere se qualcuno saprebbe dimostrarmi che

(p1 ^ q1) v (p2 ^ q2) v (p3 ^ q3)

diventa

(a1 v a2 v a3) ^ (¬a1 v p1) ^ (¬a1 v q1) ^ (¬a2 v p2) ^ (¬a2 v q2) ^ (¬a3 v p3) ^ (¬a3 v q3)

tramite applicazione del metodo strutturale.

Presumo ci siano esercizi dove bisogna trasformare una formula in forma normale congiuntiva, e mi preoccupa non saper fare la roba qui sopra.

EDIT: mi sfuggono inoltre le regole sulle parentesi, la formula (p1 ^ q1) v (p2 ^ q2) v (p3 ^ q3) ad esempio come va interpretata ?

(p1 ^ q1) v ( (p2 ^ q2) v (p3 ^ q3) ) cosi ?

Sulle dispense si parla di regole di abbreviazione ma si riferiscono alle semplici lettere proposizionali tipo p^q^r che si legge p^(q^r), vale lo stesso per formule tipo quella sopra?

Last edited by Simeon on 24-10-2007 at 23:01

24-10-2007 22:11
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