Note the you could also do "type t = [ | s ]"

2015-10-01 18:06 GMT-04:00 Ashish Agarwal <agarwal1975@gmail.com>:
> Embarrassing. I don't know why I thought I had to put brackets... Thanks!
>
> On Thu, Oct 1, 2015 at 5:47 PM, Haoyang Wang <hywang@pobox.com> wrote:
>>
>> > On Oct 1, 2015, at 2:41 PM, Ashish Agarwal <agarwal1975@gmail.com>
>> > wrote:
>> >
>> > type s = [`A | `B]
>> > type t = [s]
>>
>> type t = s
>>
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>
>