Sigh ... given that there's both "is_used_by_if" and "is_not_used_by_if" ... gonna go with "no". On Tue, May 7, 2019 at 6:42 PM Alyssa Rosenzweig <alyssa at rosenzweig.io> wrote: > > Gotcha. I wasn't sure negations in the NIR search rule were possible...?