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Covers concrete categories with sets and structures, including Ens, Gr, Ab, and Vectk.
Covers categories, functors, and presheaf categories, exploring the relationships between objects and morphisms.
Covers the concept of morphism of groups, actions on sets, and automorphisms.
Introduces categories as collections of objects with morphisms and identity morphisms.
Introduces coproducts in category theory, exploring their properties, universality, and relationships with products.
Explores the construction and properties of morphisms, focusing on effective divisors, isomorphism of semi-groups, and the relationship between sheaves and factorial spaces.
Covers the concept of isomorphism in categories, defining morphisms with inverses and exploring automorphisms and groupoids.
Explores natural transformations in group theory and category theory, emphasizing functor composition and morphism composition.
