− | Figure 70-b shows another way to picture the action of the tangent functor on the logical transformation ''F''‹''u'', ''v''› = ‹((''u'')(''v'')), ((''u'', ''v''))›, roughly in the style of the ''bundle of universes'' type of diagram. (NB. I can't really do justice to the original Figure in Ascii graphics, but this collection of pictures may serve as a construction kit, with some assembly required, to convey the general idea.) | + | Figure 70-b shows another way to picture the action of the tangent functor on the logical transformation ''F''‹''u'', ''v''› = ‹((''u'')(''v'')), ((''u'', ''v''))›, roughly in the style of the ''bundle of universes'' type of diagram. |