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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