http://z5lcip2ba3ec6v5za5snjzncpvr6ocyvqnkox2alerut6ruozpjtvkqd.onion/math/catalog
v=tRaq4aYPzCc If you've studied a lot of math you're probably already aware of p-adics. Otherwise it may seem kind of schizo. But in the video he shows how to add, negate, and multiply n-adic integers. [bold: Challenge ] : Can you prove that the algorithms shown in the video obey the familiar rules of working with numbers >(a+b)+c=a+(b+c), a+0=a, a+(-a)=0, a+b=b+a, >(a*b)*c=a*(b*c), a*(b+c)=a*b+a*c,...