Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 3 - Logic - 3.5 Equivalent Statements and Variations of Conditional Statements - Exercise Set 3.5 - Page 171: 45

Answer

For a true conditional statement, the converse may be true or it may be false. Likewise, the inverse of a true conditional statement may be true or may be false.

Work Step by Step

For a true conditional statement,the converse may be true or it may be false. Likewise,the inverse of a true conditional statement may be true or may be false. Example: Take a conditional statement,“If a figure is a square then it is a quadrilateral”. If a figure is square, then it must be quadrilateral. So, the conditional statement is true. The converse of the statement is “If a figure is a quadrilateral then it is a square”. The converse statement is not necessarily true because if a figure is a square it may be rectangle, trapezium, isosceles trapezium or a square. The inverse of the statement is “If a figure is not a square then it is not quadrilateral”. The inverse is not necessarily true because, if a figure is not a square then it may be rectangle, or a trapezium. Thus, from the above example, it can be understood that converse and inverse of a true conditional statement are not necessarily true.
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