Arepresents the idea of "if and only if." its symbol is a double arrow, left right arrow↔.

A bi-conditional statement represents the idea of "if and only if." Its symbol is a .

Step-by-step explanation:

We have been given an incomplete sentence. We are supposed to fill in the given blank.

A _______ represents the idea of "if and only if." Its symbol is a .

We know that "if and only if" stands for bi-conditional statement, which represents either both statements are true or both are false.

The symbol represent a bi-conditional statement.

Therefore, our complete statement would be: A bi-conditional statement represents the idea of "if and only if." Its symbol is a .

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step-by-step explanation: