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Theorem ordinal.sub_eq_zero_iff_le

Modification history

2021-08-18 21:30
src/set_theory/ordinal_arithmetic.lean
feat(algebra/ordered_sub): define truncated subtraction in general (#8503) …
Deleted ordinal.sub_eq_zero_iff_leView on Github →
2020-07-23 11:08
src/set_theory/ordinal.lean
chore(set_theory/ordinal): split into multiple files (#3517) …
Modified ordinal.sub_eq_zero_iff_leView on Github →
2017-12-31 16:53
data/ordinal.lean
feat(data/ordinal): is_normal, omin, power/log, CNF, indecomposables, …
Added ordinal.sub_eq_zero_iff_leView on Github →