Kummer theory
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field extension
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characteristic
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profinite group
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natural number
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complex number
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integer
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number theory
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rational number
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quadratic equation
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abstract algebra
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Fermat's Last Theorem
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field
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abelian group
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modular arithmetic
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Ernst Kummer
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elliptic curve
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root of unity
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cyclic group
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Galois group
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class field theory
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