# Question: Consider a vocabulary with only four propositions A B C

Consider a vocabulary with only four propositions, A, B, C, and D. How many models are there for the following sentences?

a. (A Λ AB) V (B Λ C)

b. A V B

c. A ↔ B ↔ C

a. (A Λ AB) V (B Λ C)

b. A V B

c. A ↔ B ↔ C

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