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Theorem abs_abs_sub_abs_le_abs_sub

Modification history

2022-11-06 23:41
src/algebra/order/group/abs.lean
refactor(*): supremum of several recent refactoring PRs (#17381) …
Modified abs_abs_sub_abs_le_abs_subView on Github →
2021-10-01 13:24
src/algebra/order/group.lean
refactor(*): replace `abs` with vertical bar notation (#8891) …
Modified abs_abs_sub_abs_le_abs_subView on Github →
2020-10-12 20:50
src/algebra/ordered_group.lean
chore(algebra/order*): move `abs`/`min`/`max`, review (#4581) …
Modified abs_abs_sub_abs_le_abs_subView on Github →
2020-05-18 13:38
src/algebra/ordered_ring.lean
refactor(algebra): merge init_.algebra into algebra (#2707) …
Modified abs_abs_sub_abs_le_abs_subView on Github →
2020-05-17 17:58
src/init_/algebra/functions.lean
chore(*): bump to lean-3.13.1 (#2697) …
Added abs_abs_sub_abs_le_abs_subView on Github →