Geodesic
Almost Continuity of Mappings
Canadian mathematical bulletin, Tome 11 (1968) no. 3, pp. 453-455

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Let E be a metric Baire space and f a real valued function on E. Then the set of points of almost continuity in E is dense (everywhere) in E.Our purpose is to set this result in its most natural context, relax some very restricted hypotheses, and to supply a direct proof. More precisely, we shall prove that the metrizability of E in Theorem H may be removed, and that the range space may be generalized from the (Euclidean) space of real numbers to any topological space satisfying the second axiom of countability [2]. 
Lin, Shwu-Yeng T. Almost Continuity of Mappings. Canadian mathematical bulletin, Tome 11 (1968) no. 3, pp. 453-455. doi: 10.4153/CMB-1968-053-4
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     title = {Almost {Continuity} of {Mappings}},
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     year = {1968},
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     doi = {10.4153/CMB-1968-053-4},
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