7. Let P denote the set of all phones in the world such that p ∈ P is a phone. Thus, S(p) denotes that “p is a SamsungTM phone”, N(p) denote that “p is a NokiaTM phone”, and G(p) denote that “p is a GoogleTM phone”. Therefore, express each of the following statements using quantifiers, logical operations, and the propositional functions: S(p),N(p),G(p). (a) There is a GoogleTM phone that is also a SamsungTM phone. (b) Every NokiaTM phone is a GoogleTM phone. (c) No NokiaTM phone is a GoogleTM phone.

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