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Revision difference : region
Version 3 Version 2
\PMlinkescapeword{domain} A region is a connected \PMlinkname{domain}{Domain2}.
A \emph{region} is a connected \PMlinkname{domain}{Domain2}. Since every domain of $\mathbb{C}$ can be seen as the union of countably many components and each component is a region, we have that regions play a major role in complex analysis.
Since every domain of $\mathbb{C}$ can be seen as the union of countably many components and each component is a region, regions play a major role in complex analysis.