Theorem Ordinal.isNormal_derivBFamily

Modification history

2024-10-14 09:30
Mathlib/SetTheory/Ordinal/FixedPoint.lean
chore(SetTheory/Ordinal/Arithmetic): `sub_isNormal` → `isNormal_sub`, etc. (#17673) …
Added Ordinal.isNormal_derivBFamilyView on Github →