Mathlib Changelog
v3
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Mathlib v3 is deprecated.
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Commit
2020-08-18 14:01
9a705331
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feat(data/option/basic): add ne_none_iff_exists (
#3856
)
Estimated changes
Modified
src/data/option/basic.lean
added
theorem
option.ne_none_iff_exists'
added
theorem
option.ne_none_iff_exists