Concept explainers
Use deductive reasoning to tell whether each statement is true or false. If it is false, give a counterexample.
For all real numbers
To verify: if the given statement is true or false.
Answer to Problem 22P
True
Explanation of Solution
Given:
The statement, “For all real numbers a and b ,
Concept Used:
Commutative property of addition
For all real numbers a and b ,
Consider
First rewrite the subtraction in terms of addition,,
Now, by the commutative property of addition
Hence, the given statement is true.
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