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Theorem option.is_none_iff_eq_none

Modification history

2018-12-17 10:50
data/option/basic.lean
fix(*): untangle dependency hierarchy
Modified option.is_none_iff_eq_noneView on Github →
2018-11-19 16:03
data/option.lean
* feat(tactic/mono): new mono and ac_mono tactics (#85) …
Modified option.is_none_iff_eq_noneView on Github →
2018-04-16 19:39
data/option.lean
feat(data/option): more option stuff
Modified option.is_none_iff_eq_noneView on Github →
2018-04-16 19:00
data/option.lean
feat(data/option): more option decidability
Added option.is_none_iff_eq_noneView on Github →