Exercise 14.2

Are the following pairs of statements negations of each other? (i) The number x is not a rational number. The number x is not an irrational number. (ii) The number x is a rational number. The number x is an irrational number.

(I) The invalidation of the principal proclamation is 'the number\[~x\] is a levelheaded number'. This is same as the second assertion since, in such a case that a number is certainly not a silly...

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