Which of the following means the same as p-->q? Choose one answer. q is necessary for p? p is sufficient for q? all of the above? None of the above?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Which of the following means the same as p-->q? Choose one answer.

q is necessary for p?

p is sufficient for q?

all of the above?

None of the above?

Expert Solution
Step 1

Consider the truth table 

p q p q
T T T
T F F
F T T
F F T

p-> q is equivalent to If p then q

Here p is sufficient for q
         q is necessary for p
 

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