Theorems · Theorem · logic and foundations
Ordinal.card_le_one
∀ {o : Ordinal.{u_1}}, o.card ≤ 1 ↔ o ≤ 1- Defined in
- Mathlib.SetTheory.Ordinal.Basic
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 88 from the axioms · uses propext, Classical.choice, Quot.sound
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Cites5
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Cardinalstatement · cited by 2,598
- Nat.cast_oneproof · cited by 2,501
- Ordinalstatement and proof · cited by 1,688
- Ordinal.cardstatement and proof · cited by 122
- Ordinal.card_le_natproof · cited by 3
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