1.

If T(x) denotes is a trigonometric function, P(x) denotes x is a periodic function and C(x) denotes x is a continuous function then the statement “It is not the case that some trigonometric functions are not periodic” can be logically represented as

A. ¬ ∃x[T(x) ∧ ¬ P(x)]
B. ¬ ∃x[T(x) ∨ ¬ P(x)]
C. ¬ ∃x[¬T(x) ∧ ¬ P(x)]
D. ¬ ∃x[T(x) ∧ P(x)]
Answer» B. ¬ ∃x[T(x) ∨ ¬ P(x)]


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