let statement problems

The moment of inertia of a body about an axis is equal to its moment of inertia about a parallel axis through its centre of gravity plus the product of the mass of the body and the square of the perpendicular distance between the two parallel axes...

B be a Boolean algebra, then (x + y)' = x'..

Normally propositions are joined by 'OR', 'AND', 'NOT', 'IF .. THEN..' and 'IF AND ONLY IF' called the logical connectives . They are symbolised as follows: If two or more statements are combined by the use of words like 'AND', 'OR', 'IF AND ONLY IF ', then the resulting statemen..

Some sentences depend on a variable for its truth value (i.e., true or false). e.g., "2+4+6+2n=2n" is true for n=1 but false for n=2, n=3 etc. As the above sentence is definitely true or definitely false for a particular positive integral value of n, the sentence is a stateme..

When transforming statements, check whether you have to change: pronouns present tense verbs (3rd person singular) place and time expressions tenses (backshift) A: My car is blue in colour. B: A says that his car is blue in colour. A: I came to office by car. B: A said that he ..

If A, B and C are any three sets, prove tha..