Theorems · Theorem · number theory
ModularGroup.stabilizer_I
∀ {g : Matrix.SpecialLinearGroup (Fin 2) ℤ},
g • UpperHalfPlane.I = UpperHalfPlane.I ↔ g ∈ {1, -1, ModularGroup.S, -ModularGroup.S}- Defined in
- Mathlib.NumberTheory.Modular
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 180 from the axioms · uses propext, Classical.choice, Quot.sound
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