Definition 40.1.10 (Syndetic).label Let $G$ be a group and $S \subset G$, then $S$ is (left) syndetic if there exists $F \subset G$ finite $FS = G$.
Definition 40.1.10 (Syndetic).label Let $G$ be a group and $S \subset G$, then $S$ is (left) syndetic if there exists $F \subset G$ finite $FS = G$.
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