How do you write the following statements as bi-conditional statements?? Help please!! URGENT!!?1. A rational number is a number that can be...

In logic if P and q qre simple propositions, the  a condtional
prposition is  if p then q. Or symbolically we writ this by p
--> q.

A biconditional proposition is  if p
then then q and if q then p, and it is denoted by  p <--> q. It is
is also written like if and only if  or
iff.

Example :

1)
A number is rational if and only if it can be expressed as a
quotient of two integers.

2) A quadrilateral is paralllogram iff it
has equal opposite angles.

Thruth tabbes for a bicinditional
propositions is as follows:

P                q                 P
<---> q

T                 T                        
T

F                  T                      
 F

T                  F                       
F

T                  T                       
T.