Consider the vocabulary with only four propositions A, B, C and D. How many models are there for the following sentence?
(⌐ A ∨ ⌐ B ∨ ⌐ C ∨ ⌐ D)1
8
2
7
3
15
4
16
Consider the vocabulary with only four propositions A, B, C and D. How many models are there for the following sentence?
(⌐ A ∨ ⌐ B ∨ ⌐ C ∨ ⌐ D)