Elementarily definable analysis
نویسندگان
چکیده
منابع مشابه
On elementarily -homogeneous unary structures
Let L be a first-order language with equality and let U be an L-structure of cardinality . If @0 , then we say that U is elementarily -homogeneous iff any two substructures of cardinality are elementarily equivalent, and -homogeneous iff any two substructures of cardinality are isomorphic. In this note, we classify the elementarily -homogeneous structures .A; f / where f W A! A is a function an...
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A structure M in a first order language L is indivisible if for every colouring of its universe M in two colours, there is a monochromatic substructure M′ ⊆ M such that M′ ∼=M. Additionally, we say that M is symmetrically indivisible if M′ can be chosen to be symmetrically embedded inM (That is, every automorphism ofM′ can be can be extended to an automorphism of M), and that M is elementarily ...
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 1955
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm-41-2-311-338