Def Ordinal.Principal

Modification history

2026-03-20 09:45

Mathlib/SetTheory/Ordinal/Principal.lean

chore: rename `Ordinal.Principal` → `Ordinal.IsPrincipal` (#36793) …

Deleted Ordinal.Principal View on Github →

2023-02-22 19:59

Mathlib/SetTheory/Ordinal/Principal.lean

feat: port SetTheory.Ordinal.Principal (#2442)

Added Ordinal.Principal View on Github →