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Mathlib v3 is deprecated.
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Theorem
nat.sub_cancel
Modification history
2021-10-06 10:12
src/data/nat/basic.lean
refactor(data/nat/basic): remove sub lemmas (#9544) …
Deleted
nat.sub_cancel
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2019-04-07 01:34
src/data/nat/basic.lean
feat(data/nat/basic): b = c if b - a = c - a (#862)
Added
nat.sub_cancel
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