Commit 2022-07-08 02:55 a3c647bb
View on Github →feat(set_theory/ordinal/arithmetic): tweak theorems about 0
and 1
(#15174)
We add a few basic theorems on the 0
and 1
ordinals. We rename one_eq_type_unit
to type_unit
, and remove one_eq_lift_type_unit
by virtue of being a trivial consequence of type_unit
and lift_one
.