User blog comment:Billicusp/Uggh/@comment-12.144.5.30-20160112070930/@comment-12.144.5.30-20160116194231

The Ultrex notation is a work in progress,but I just fixed the bonehead math error on 4 u 2 before anyone calls me out on it.

It seems to outpace Knuth arrows where bounds approximate bases.

The popble design would be strengthened by including ultrex,but the point-polygon-blast derivation weakened.I was misled in sequencing the operations,I think,by Stepney representing Moser-gons as beyond the later and more powerful Conway arrows.In any case alloying functions seems stronger than one alone,popbling exponents as you go up is even stronger than ultrex (and is used in some of my higher functions).