Theory of Mathematical Structures |
Contents
Objects and Morphisms | 2 |
Definitions and Examples | 4 |
1C Isomorphisms | 13 |
1D Fibres | 21 |
1E Isomorphic Constructs | 29 |
1F Subobjects and Generation | 35 |
1G Quotient Objects | 40 |
1H Free Objects | 48 |
Limits and Colimits | 149 |
4B Limits | 157 |
4C Colimits | 169 |
4D Adjoint Functor Theorem | 179 |
4E Reflective Subcategories | 193 |
4F Tensor Products | 204 |
Selected Topics | 225 |
Relational and Algebraic Structures | 226 |
Initial and Final Structures | 57 |
2B Cartesian Products | 66 |
2D Semifinal Objects | 82 |
2E A Criterion for Semifinal Completeness | 92 |
Categories and Functors | 101 |
Categories | 102 |
3B The Duality Principle | 106 |
3C Functors | 113 |
3D The Construct of Small Categories | 121 |
3E Natural Transformations | 127 |
3F Adjoint Functors | 138 |
5A Set Functors | 227 |
5B Relational Structures | 238 |
5C Algebraic Structures | 253 |
5D The Birkhoff Variety Theorem | 265 |
Concrete Categories | 275 |
6B The Kucera Theorem | 290 |
6C Universal Constructs | 294 |
References | 310 |
List of Constructs and Categories | 312 |
List of Functors and Other Symbols | 313 |
314 | |
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Common terms and phrases
A₁ A₂ Abelian groups adjoint Analogously arbitrary B)-spans B₁ bijection Cartesian product colimits commutes compatible complete lattice complete semilattice concrete congruence coproducts defined Definition denote disjoint element equivalent example exists a unique f₁ f₂ faithful functor fibre-small construct finite forgetful functor free objects full subconstruct functor F given groupoid hence Hint hom-functor hom(A Hom(B homomorphism identity morphisms implies inclusion map indiscrete space initial structure initially complete initially mono-complete Let F linear map map f map ƒ map h metric spaces mono morphism f natural transformation naturally isomorphic numbers one-to-one pair poset preordered set Proof prove Q₂ quotient object Remark semifinal object semifinally complete semilattice set functor small category subobject subset surjective t₁ t₂ Theorem topological space topology unique morphism Vect vector space verify x₁ x₂ y₁ y₂