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Structure theorem basis
pdf.
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Gauss' Lemma
pdf.
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Nakayama's Lemma
pdf.
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Euler characteristic
pdf.
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Some tensorial maps
pdf.
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Bases of symmetric and exterior powers
pdf.
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Tensor algebra and pairings
pdf.
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The bar resolution
pdf.
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Duality for finite abelian groups
pdf.
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Quadratic spaces and signature
pdf.
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A connectedness theorem
pdf.
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