Remember when you cancel a common factor at both sides of an equation, you must check if the factor is **non-zero**, otherwise you would miss some answers.

This is about **Cancellation Law, **related tofew**Number Theory Properties :**

**Zero Divisors,****Integral Domain.**

Origin of “Integral” => Integers

Definition of Integral Domian:

Property:Cancellation Law

**Reading**:

**THEOREMS**:(PROOF Here)

- Every
**Field**is an**Integral Domain**. - Every
**finite Integral Domain**is a**Field**.