Theorems · Theorem · group theory
Subgroup.isComplement_iff_existsUnique_inv_mul_mem
∀ {G : Type u_1} [inst : Group G] {S T : Set G}, Subgroup.IsComplement S T ↔ ∀ (g : G), ∃! s, (↑s)⁻¹ * g ∈ T- Defined in
- Mathlib.GroupTheory.Complement
- Cited by
- 2 results in Mathlib
- Foundations
- Depth 12 from the axioms · uses propext, Quot.sound
- Assumes
- Group
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites8
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setstatement and proof · cited by 53,352
- Set.Elemstatement and proof · cited by 7,166
- Groupstatement and proof · cited by 6,238
- ExistsUniquestatement and proof · cited by 268
- Subgroup.IsComplementstatement and proof · cited by 94
- inv_mul_cancel_leftproof · cited by 88
- mul_inv_cancel_leftproof · cited by 86
- Subgroup.isComplement_iff_existsUniqueproof · cited by 4
Cited by2
Results whose statement or proof uses this declaration.
- Subgroup.IsComplement.equiv_fst_eq_iff_leftCosetEquivalenceproof · cited by 1
- Subgroup.smul_toLeftFunproof · cited by 1