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Assinale a opção correspondente à proposição composta que tem
exatamente 2 valores lógicos F e dois valores lógicos V, para que
todas as possíveis atribuições de valores V ou F para as proposições A
e B:
a) B V ( ¬ A)
b) ¬ (A /\ B)
c) ¬ [(¬A) /\ (¬B)]
d) [(¬A) V (¬B)] /\ (A /\ B)
e) [( ¬A) V B] /\ [(¬B) V A]
Obs.: para digitar o símbolo negação utiliza ctrl alt 6, ou use o til
~
--
Raquel Rodrigues ;-)
romulofaria
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Dec 22, 2008, 6:31:23 PM12/22/08
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~A v B V ~B V A
f v V v v v V v
f f F f f v F f
v v V v v f V v
v f F f f f V f
2fs e 2vs, correto? letra e
Raquel Rodrigues
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Dec 27, 2008, 10:47:06 AM12/27/08
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Correto. Vou pegar o gabarito dos outros e te passo. Sei q a primeira a resposta é certo a resposta está entre aqueles números.