ModularGroup.bottom_row_surj

∀ {R : Type u_1} [inst : CommRing R], Set.SurjOn (fun g => ↑g 1) Set.univ {cd | IsCoprime (cd 0) (cd 1)}

Every pair ![c, d] of coprime integers is the "bottom row" of some element g=[[*,*],[c,d]] of SL(2,ℤ).

Defined in: Mathlib.NumberTheory.Modular
Cited by: 2 results in Mathlib
Foundations: Depth 92 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: CommRing

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