Mario Carneiro 9fc04ae812 feat(init/data/option/instances): = none of is_none		2017-07-05 12:37:54 -07:00
..
basic.lean	feat(init/data/option): option.get	2017-05-27 04:14:05 -04:00
instances.lean	feat(init/data/option/instances): = none of is_none	2017-07-05 12:37:54 -07:00