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Def equiv.sum_empty_left

Modification history

2017-12-17 02:45
data/equiv.lean
feat(data/ordinal): ordinal collapse, ordinals ordering,
Deleted equiv.sum_empty_leftView on Github →
2017-09-08 14:49
data/equiv.lean
feat(data/equiv): port data/equiv.lean from Lean2
Added equiv.sum_empty_leftView on Github →