Theorem Ordinal.cof_iSup_Iio

Modification history

2026-03-23 09:21
Mathlib/SetTheory/Cardinal/Cofinality.lean
feat: cofinalities of suprema (#36924) …
Modified Ordinal.cof_iSup_IioView on Github →
2026-03-20 14:17
Mathlib/SetTheory/Cardinal/Cofinality.lean
feat: `cof α = cof β` given a strictly monotonic function `f : α → β` with cofinal range (#36703) …
Added Ordinal.cof_iSup_IioView on Github →