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Logics, Volume 3, Issue 4 (December 2025) – 1 article

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Article
Structural Similarity: Formalizing Analogies Using Category Theory
by Claire Ott
Logics 2025, 3(4), 12; https://doi.org/10.3390/logics3040012 - 23 Sep 2025
Viewed by 281
Abstract
Analogies are an important part of human cognition for learning and discovering new concepts. There are many different approaches to defining analogies and how new ones can be found or constructed. We propose a novel approach in the tradition of structure mapping using [...] Read more.
Analogies are an important part of human cognition for learning and discovering new concepts. There are many different approaches to defining analogies and how new ones can be found or constructed. We propose a novel approach in the tradition of structure mapping using colored multigraphs to represent domains. We define a category of colored multigraphs in order to utilize some Category Theory (CT) concepts. CT is a powerful tool for describing and working with structure-preserving maps. There are many useful applications for this theory in cognitive science, and we want to introduce one such application to a broader audience. CT and the concepts used in this paper are introduced and explained. We show how the category theoretical concepts product and pullback can be used with the category of colored multigraphs to find possible analogies between domains using different requirements. The dual notion of a pullback, the pushout, is then used as conceptual blending to generate a new domain. Full article
(This article belongs to the Special Issue Logic, Language, and Information)
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