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Question
Write the truth value of the following statements.
(i) 9 is an even integer or 9 + 1 is even.
(ii) 2 + 4 = 6 or 2 + 4 = 7
(iii) Delhi is the capital of India and Islamabad is the capital of Pakistan.
(iv) Every rectangle is a square and every square is a rectangle
(v) The sun is a star or sun is a planet.
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Solution
In view of (D1), (D2), (D3) and (D4),
We observe that only statement (iv) has truth value F as the first component statement namely “every rectangle is a square” is false.
Further, in statements (i), (ii) and (v) atleast one component statement is true.
Therefore, these statements have truth value T.
Also, truth value of statement (iii) is T as both the component statements are true
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