Theorem Ordinal.toNatOrdinal_eq_zero

Modification history

2026-02-20 00:22
Mathlib/SetTheory/Ordinal/NaturalOps.lean
chore: remove deprecated material from CGT (#35550) …
Deleted Ordinal.toNatOrdinal_eq_zeroView on Github →
2025-03-14 18:18
Mathlib/SetTheory/Ordinal/NaturalOps.lean
feat: more lemmas on `NatOrdinal` (#22616) …
Modified Ordinal.toNatOrdinal_eq_zeroView on Github →
2023-02-18 20:14
Mathlib/SetTheory/Ordinal/NaturalOps.lean
Port/SetTheory.Ordinal.NaturalOps (#2353)
Added Ordinal.toNatOrdinal_eq_zeroView on Github →