Question
Mathematics Question on mathematical reasoning
Which of the following compound statements is true after writing the component statements of each compound statement?
A line is straight and extends indefinitely in both directions
0 is greater than every positive integer and less than every negative integer
All living things have two legs and two eyes
42 is divisible by 4 and 5
A line is straight and extends indefinitely in both directions
Solution
(a) The component statements are p: A line is straight. q: A line extends indefinitely in both directions. Both these statements are true. Therefore, the compound statement is true. (b) The component statements are p:0 is greater than every positive integer. q:0 is less than every negative integer. Both statements are false. Therefore, the compound statement is false. (c) The component statements are p: All living things have two legs. q: All living things have two eyes. Both these statements are false. Therefore, the compound statement is false. (d) The component statements are p:42 is divisible by 4. q:42 is divisible by 5. Both the statements are false. So compound statement is false.