Proposal: Add First and Last wrappers around Maybe to Data.Monoid

Jeffrey Yasskin jyasskin at
Mon Mar 12 12:10:24 EDT 2007

Today is the scheduled end for discussion on this proposal. Are there
any final objections, suggestions, or comments before I update the
ticket and ask someone to commit it?

On 3/8/07, Jeffrey Yasskin <jyasskin at> wrote:
> I've attached a second version of the patch to the ticket
> ( along with the HTML
> Haddock generates from it. I added the two examples and the "imposed
> identity" instance directly on Maybe. Would one of its fans like to
> provide an example of using the Maybe monoid?

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