The sides of a triangle with positive area have lengths 4, 6, and $x$. The sides of a second triangle with positive area have lengths 4, 6, and $y$. What is the smallest positive number that is $\textbf{not}$ a possible value of $|x-y|$?
<|im_start|>system
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<|im_start|>user
The sides of a triangle with positive area have lengths 4, 6, and $x$. The sides of a second triangle with positive area have lengths 4, 6, and $y$. What is the smallest positive number that is $\textbf{not}$ a possible value of $|x-y|$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
8
The sides of a triangle with positive area have lengths 4, 6, and $x$. The sides of a second triangle with positive area have lengths 4, 6, and $y$. What is the smallest positive number that is $\textbf{not}$ a possible value of $|x-y|$?
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