Finpartition.eq_of_mem_parts

∀ {α : Type u_1} [inst : DecidableEq α] {s t u : Finset α} (P : Finpartition s) {a : α},
  t ∈ P.parts → u ∈ P.parts → a ∈ t → a ∈ u → t = u

Defined in: Mathlib.Order.Partition.Finpartition
Cited by: 2 results in Mathlib
Foundations: Depth 60 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: DecidableEq

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