sSup_symmDiff_le

∀ {α : Type u} [inst : CompleteBooleanAlgebra α] {s : Set α},
  s.Nonempty → ∀ {a : α}, symmDiff (sSup s) a ≤ sSup ((fun x => symmDiff x a) '' s)

Defined in: Mathlib.Order.CompleteBooleanAlgebra
Cited by: 3 results in Mathlib
Foundations: Depth 59 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: CompleteBooleanAlgebra

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