Hello everyone again.  So thought I'd take another stab at this!  The
following query works great, it retrievs fn:interval records that have
both $FTEInterval_Members and $FTEInterval_JTED_Mains:

<xsl:apply-templates
select="fx:node-set($interval)//fn:interval[//field[@fieldname='EntityID']=$F
TEInterval_Members][//field[@fieldname='EntityID']=$FTEInterval_JTED_Mains]"
mode="Exceptions" />

What is the inverse of this?  Which would suffice to be my "CATCH
ALL", in otherwords match everything else where the above combination
fails.

Karl..