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Results tagged with algebraic-systems
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user 16722
Algebraic systems, relational structures. As considered in model theory, a structure (or a model) is a set endowed with a family of finitary relations and functions (operations). In some contexts, these can be represented by relational structures with some of the $(n+1)$-ary relations being viewed as $n$-ary functions. As considered in universal algebra, an algebraic structure is a structure with operations only.
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Is there a relational countable ultra-homogeneous structure whose countable substructures do...
Is there a relational countable ultra-homogeneous structure whose countable substructures do not have the amalgamation property?
The question can be stated in a fashion not requiring much backgro …
- 577
5
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answer
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Semigroup product of the left-invariant completion of a Polish group (restatement of Questio...
This is a re-statement, of sorts, of the question Is there a relational countable ultra-homogeneous structure whose countable substructures do not have the amalgamation property?, so far unanswered.
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