**Definition:**

**1.** If then `.`

Where and are *integers* and is a *positive integer*.

**2.** If

and

then .

Where and are *integers* and is a *positive integer.*

**3.** If

then, .

Where , and are *integers* and is a *positive integer*.

**Example:**

So

**Algebra of Congruence:**

If

and

then

also .

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## About f.nasim

A CS undergrad from Bangladesh.