$\"\"$

Theorem 6: If $\"\"$ , then $\"\"$ .

Consider the squence $\"\"$ .

Squeeze theorem for sequences: If $\"\"$ and there exist an integer $\"\"$ such that $\"\"$ for all $\"\"$ then $\"\"$ . \ \

Absolute value definition: $\"\"$ for all $\"\"$ .

$\"\"$

Apply $\"\"$ on each side. \ \

$\"\"$

If $\"\"$ then $\"\"$ .

$\"\"$ .

By squeeze the $\"\"$ .

$\"\"$

Theorem is proved.