Consider a vocabulary with only four propositions, A, B, C, and D. How many models are there for the following sentences? a. B ∨ C. b. ¬A ∨ ¬ B ∨ ¬ C ∨ ¬D. c. (A ⇒ B) ∧ A ∧ ¬ B ∧ C ∧ D.

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Consider a vocabulary with only four propositions, A, B, C, and D. How many models are there for the following sentences?
a. B ∨ C.
b. ¬A ∨ ¬ B ∨ ¬ C ∨ ¬D.
c. (A ⇒ B) ∧ A ∧ ¬ B ∧ C ∧ D.
d. (A ∧ B)∨ (C ∧ D).
e. B ⇒ (A ∧ B).

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