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What is the symbol for if and only if 

Option: 1

\Rightarrow


Option: 2

\Leftrightarrow


Option: 3

iff 


Option: 4

Both (B) and (c)


Answers (1)

best_answer

As we have learned

If and only if -

It is denoted by p\Leftrightarrowq or p\equivq

-

 

iff is also used for if and only if 

 

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