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Theorems · Theorem · order theory

iSup_symmDiff_le

∀ {α : Type u} {ι : Sort w} [inst : CompleteBooleanAlgebra α] {f : ι → α} [Nonempty ι] {a : α},
  symmDiff (⨆ i, f i) a ≤ ⨆ i, symmDiff (f i) a
Defined in
Mathlib.Order.CompleteBooleanAlgebra
Cited by
3 results in Mathlib
Foundations
Depth 58 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CompleteBooleanAlgebraNonempty

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Cites5

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Cited by3

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