Set.biUnion_diff_biUnion_subset

Deprecated since 2026-06-03Use Set.biUnion_sdiff_biUnion_subset instead.

∀ {α : Type u_1} {β : Type u_2} (t : α → Set β) (s₁ s₂ : Set α), (⋃ x ∈ s₁, t x) \ ⋃ x ∈ s₂, t x ⊆ ⋃ x ∈ s₁ \ s₂, t x

Alias of Set.biUnion_sdiff_biUnion_subset.

Defined in: Mathlib.Data.Set.Lattice
Cited by: 0 results in Mathlib
Foundations: Depth 64 from the axioms · uses propext, Classical.choice, Quot.sound

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