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Chapter 9, Level 1 Self Quiz: BIV
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Choose the correct translation of the following argument.
Nothing is rare. Everything is either beautiful or expensive if and only if it is rare. Therefore, everything is expensive if and only if it is beautiful. (R, B, E)
1. ( x ) ~ Rx 2. ( x ) [( Bx ∨ Ex ) ≡ Rx] / ( x ) ( Ex ≡ Bx )
correct
incorrect
1. ( x ) ~ Rx 2. ( x ) [( Bx • Ex ) ≡ Rx] / ( x ) ( Ex ≡ Bx )
correct
incorrect
1. ( x ) ~ Rx 2. ( x ) [( Bx ∨ Ex ) ⊃ Rx] / ( x ) ( Ex ≡ Bx )
correct
incorrect
1. ( x ) ~ Rx 2. ( x ) [( Bx ∨ Ex ) ≡ Rx] / ( x ) ( Ex ⊃ Bx )
correct
incorrect
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