Definition:Discontinuity (Real Analysis)/Non-Removable
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Let $A \subseteq \R$ be a subset of the real numbers.
Let $f: A \to \R$ be a real function.
Let $f$ be discontinuous at $a\in A$.
The point $a$ is a non-removable discontinuity of $f$ if and only if it is not a removable discontinuity.
Also known as
Some sources do not hyphenate: nonremovable discontinuity.
- Results about non-removable discontinuities can be found here.