Piaget and Nautica Do Not Have a Sapphire Watch Unless

question 158

Multiple Choice

Piaget and Nautica do not have a sapphire watch unless Breitling's having a diamond watch is a sufficient and necessary condition for either Cartier's offering multiple dials or Gucci's selling a self-winder.

• A) ∼(P • N) ∨ [(C ∨ G) ≡ B]
• B) (∼P • ∼N) ∨ [(B ⊃ C) • (G ⊃ B)]
• C) (∼P • ∼N) ∨ [(B ≡ (C ∨ G)]
• D) (∼P • ∼N) ⊃ [(B ≡ (C ∨ G)]
• E) [(B ≡ (C ∨G)] ⊃ (∼P • ∼N)

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