I am referring this calculation https://stats.stackexchange.com/questions/284569/convergence-of-the-maximum-likelihood-estimator-of-a-uniform-parameter
Here the accepted answer says that $\left( \dfrac{\theta - \epsilon}{\theta} \right)^n$ tends to 0 as $n \to \infty$
I wonder which rule follows this. I looked into different formulas for limit in https://www.cuemath.com/limit-formula/, but could not figure this out.