Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2022-03-03 13:01 f7a6fe9e

View on Github →

feat(set_theory/cofinality): Prove simple theorems on regular cardinals (#12328)

Estimated changes

Modified src/set_theory/cofinality.lean

added theorem cardinal.aleph'_succ_is_regular

added theorem cardinal.aleph_succ_is_regular

added theorem cardinal.is_regular.cof_eq

added theorem cardinal.is_regular.omega_le