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Theorems · Theorem · group theory

DihedralGroup.equivSum_symm_apply

∀ {n : ℕ} (x : ZMod n ⊕ ZMod n),
  DihedralGroup.equivSum.symm x =
    match x with
    | Sum.inl j => DihedralGroup.r j
    | Sum.inr j => DihedralGroup.sr j
Defined in
Mathlib.GroupTheory.SpecificGroups.Dihedral
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Foundations
Depth 15 from the axioms · uses Quot.sound
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DFunLike.coe · cited by 62936DFunLike.coeEquiv · cited by 8337EquivEquiv.symm · cited by 3681Equiv.symmZMod · cited by 1024ZModDihedralGroup · cited by 41DihedralGroupDihedralGroup.equivSum · cited by 3DihedralGroup.equivSumDihedralGroup.equivSum_symm_a…CITED BYCITES

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