Theorem Cardinal.diff_nonempty_of_mk_lt_mk

Modification history

2026-06-09 08:51
Mathlib/SetTheory/Cardinal/Basic.lean
chore: rename `diff` to `sdiff` (#40184) …
Deleted Cardinal.diff_nonempty_of_mk_lt_mkView on Github →
2025-06-08 11:29
Mathlib/SetTheory/Cardinal/Basic.lean
feat(SetTheory/Cardinal): relate nonemptiness of a set to its cardinality (#25576) …
Added Cardinal.diff_nonempty_of_mk_lt_mkView on Github →