# How do you write the following statements as bi-conditional statements?? Help please!! URGENT!!?1. A rational number is a number that can be expressed a quotient of two intergers.2. A parralelogram...

# How do you write the following statements as bi-conditional statements?? Help please!! URGENT!!?

# 1. A rational number is a number that can be expressed a quotient of two intergers.

2. A parralelogram has opposite angles equal.

*print*Print*list*Cite

### 1 Answer

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.