1 .		(x)(Hx Mx) is a(n): [Hint]
2 .		The proposition "No pigs are green" is properly symbolized as: [Hint]
3 .		If "P" stands for pigs and "D" stands for dirty, the symbolization ( x)(PxDx) means: [Hint]
4 .		The two general subject-predicate propositions (x)(x x) and (x)( x x) are: [Hint]
5 .		Which of the following statements is not true? [Hint]
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