#category theory

• Adjunction — An operation or relationship of joining or adding an element to a pre-existing structure without altering its basic identity. In linguistics, it refers to the attachment of a syntactic structure to a major constituent, while in mathematics (category theory), it represents a fundamental relation between two parallel functors, termed adjunct functors.
• Anticategory — An abstract concept utilized in structural logic or mathematical category theory to denote a dual, inverse, or complementary structure in relation to a standard defined category. In a philosophical sense, it represents a conceptual class constructed through direct opposition or by negating the fundamental attributes of an established ontological category.