SUBSTRUCTURE

Substructure

In mathematical logic, an substructure or subalgebra is a structure whose domain is a subset of that of a bigger structure, and whose functions and relations are the traces of the functions and relations of the bigger structure. Some examples of subalgebras are subgroups, submonoids, subrings, subfields, subalgebras of algebras over a field, or induced subgraphs. Shifting the point of view, the larger structure is called an extension or a superstructure of its substructure.

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substructure

Noun

  1. The supporting part of a structure (either physical or organizational; the foundation); underbuilding.
  2. The earth or gravel that railway sleepers are embedded in.


The above text is a snippet from Wiktionary: substructure
and as such is available under the Creative Commons Attribution/Share-Alike License.

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