Ab2ab2 26.4k1313 gold badges7272 silver badges105105 bronze badges ten And during the 60s, in my Latin class we chanted the relevant Ubi, ubi est meus sub ubi? bib Intuitively, the natural quantity n may be the typical home of all sets which have n aspects. So, it seems natural to https://share.evernote.com/note/b6ac86c4-49b5-8a83-fcdd-e9f84e4317c6