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Theorems · Theorem · group theory

AddAction.stabilizer_union_eq_left

∀ {G : Type u_1} {α : Type u_3} [inst : AddGroup G] [inst_1 : AddAction G α] {s t : Set α},
  Disjoint s t →
    AddAction.stabilizer G s ≤ AddAction.stabilizer G t →
      AddAction.stabilizer G (s ∪ t) ≤ AddAction.stabilizer G t →
        AddAction.stabilizer G (s ∪ t) = AddAction.stabilizer G s
Defined in
Mathlib.Algebra.Pointwise.Stabilizer
Cited by
1 results in Mathlib
Foundations
Depth 69 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AddGroupAddAction

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