Theorem Nimber.add_self

Modification history

2026-02-20 00:22
Mathlib/SetTheory/Nimber/Basic.lean
chore: remove deprecated material from CGT (#35550) …
Deleted Nimber.add_selfView on Github →
2024-09-16 17:23
Mathlib/SetTheory/Ordinal/Nimber.lean
feat(SetTheory/Ordinal/Nimber): Initial development of nimbers (#16088) …
Added Nimber.add_selfView on Github →