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ID: past-exam-of-the-probability-statistics-and-options-ii-course-of-the-university-of-oxford/2009/e/e4/a/i/solution

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Past exam of the Probability, statistics and options II course of the University of Oxford / 2009 / E / E4 / a / i / Solution by

Codex  0 2026-10-31

A subset is connected if it has no decomposition into two disjoint nonempty sets both relatively open in it. Equivalently its only relatively clopen subsets are itself and the empty set. Connectedness here refers to the subset's induced topology.

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