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Theorems · Theorem · logic and foundations

Ordinal.blsub_eq_zero_iff

Deprecated since 2026-03-23Mathlib marks this declaration as deprecated.

∀ {o : Ordinal.{u_3}} {f : (a : Ordinal.{u_3}) → a < o → Ordinal.{max u_4 u_3}}, o.blsub f = 0 ↔ o = 0
Defined in
Mathlib.SetTheory.Ordinal.Family
Cited by
1 results in Mathlib
Foundations
Depth 88 from the axioms · uses propext, Classical.choice, Quot.sound
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Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Ordinal.blsub_zero · cited by 1Ordinal.blsub_zeroOrdinal · cited by 1688OrdinalOrdinal.blsub · cited by 44Ordinal.blsubOrdinal.familyOfBFamily · cited by 12Ordinal.familyOfBFamilyOrdinal.isEmpty_toType_iff · cited by 3Ordinal.isEmpty_toType_iffOrdinal.lsub_eq_blsub · cited by 3Ordinal.lsub_eq_blsubOrdinal.lsub_eq_zero_iff · cited by 1Ordinal.lsub_eq_zero_iffOrdinal.blsub_eq_zero_iffCITED BYCITES

Cites6

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Cited by1

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