Hom and Ext
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Ext^ZZ(Module,Module) (missing documentation) -- Ext module
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(Ext, ZZ, Matrix, Matrix) (missing documentation)
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(Ext, ZZ, Matrix, Module) (missing documentation)
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(Ext, ZZ, Module, Matrix) (missing documentation)
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Hom(Complex,Complex) -- the complex of homomorphisms between two complexes
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Hom(ComplexMap,ComplexMap) (missing documentation)
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homomorphism(ComplexMap) (missing documentation)
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homomorphism'(ComplexMap) (missing documentation)
Yoneda extensions and elements of Ext
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yonedaMap(Matrix) (missing documentation)
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yonedaMap'(ComplexMap) (missing documentation)
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yonedaExtension(Matrix) (missing documentation)
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yonedaExtension'(Complex) (missing documentation)
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yonedaProduct(Matrix,Matrix) (missing documentation)
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yonedaProduct(Module,Module) (missing documentation)