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Definition of Lower semi-continuous
1. Adjective. (context: of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at most that number is closed. ¹
¹ Source: wiktionary.com
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1. Adjective. (context: of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at most that number is closed. ¹
¹ Source: wiktionary.com