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Enriched categories, topoi, abelian categories, monoidal categories, homological algebra.

0 votes

Graphs with dangling edges

There exist partial algebras ( having nontotal basic operations ), multi-typed structures, hypergraphs, and various flavors of categories, so why not partial multigraphs? Unfortunately, your descri …
The Masked Avenger's user avatar
4 votes

Shape of axioms in algebraic structures

x = "preservation". Usually one is motivated to study a structure because it serves as a model for something of interest. Likewise a certain statement or class of statements may have nice consequenc …
The Masked Avenger's user avatar