Proposal (Trac ticket #3524): Add mfilter to Control.Monad

Jon Fairbairn jon.fairbairn at
Thu Oct 1 11:25:54 EDT 2009

Jon Fairbairn <jon.fairbairn at> writes:

> Following on from the discussion of #3453, I propose the addition of
> mfilter to Control.Monad. It's just List.filter for any MonadPlus. 


> Time limit for discussion: 1 October.

That looks like nem. con. to me.  Please can someone commit it?

Jón Fairbairn                                 Jon.Fairbairn at

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