Theorems · Theorem · logic and foundations

Set.ncard_eq_ncard_iff_ncard_diff_eq_ncard_diff

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

∀ {α : Type u_1} {s t : Set α},
  autoParam s.Finite Set.ncard_eq_ncard_iff_ncard_sdiff_eq_ncard_sdiff._auto_1 →
    autoParam t.Finite Set.ncard_eq_ncard_iff_ncard_sdiff_eq_ncard_sdiff._auto_3 →
      (s.ncard = t.ncard ↔ (s \ t).ncard = (t \ s).ncard)

Alias of Set.ncard_eq_ncard_iff_ncard_sdiff_eq_ncard_sdiff.

Defined in: Mathlib.Data.Set.Card
Cited by: 0 results in Mathlib
Foundations: Depth 102 from the axioms · uses propext, Classical.choice, Quot.sound

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Setstatement · cited by 53,352
Set.Finitestatement · cited by 1,814
Set.ncardstatement · cited by 344
Set.ncard_eq_ncard_iff_ncard_sdiff_eq_ncard_sdiffproof · cited by 1

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