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单词 Homogeneous
释义

homogeneous


Let L be a first order language. Let M be an L-structureMathworldPlanetmath.Then we say M is homogeneousPlanetmathPlanetmathPlanetmath if the following holds:

ifσ is an isomorphismPlanetmathPlanetmathPlanetmathPlanetmathPlanetmathPlanetmathPlanetmath between finite substructures of M,then σ extends to an automorphismPlanetmathPlanetmath of M.

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更新时间:2025/5/4 11:24:11