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Project-declaredLean 4.32.0

Finite double Coset

TotallyDefiniteQuaternionAlgebra.finite_doubleCoset

Plain-language statement

For any open U ⊆ GL₂(𝔸_F), Dˣ\GL₂(𝔸_F)/U is finite. (where is viewed as a subgroup of GL₂(𝔸_F) under the identification M₂(𝔸_F) ≃ D ⊗ 𝔸_F)

number theoryarithmetic geometryFermat's Last Theorem

Source project: Fermat's Last Theorem

Person-level attribution pending.

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