User blog comment:Ynought/Extended array hierarchy/@comment-35470197-20190117222337/@comment-36957202-20190120082857

>In the description "any 0 gets deleted", do you intend the computation \((2,0,1)_{3,1} = (2,1)_{3,1}\) and \((2,1)^{(3,0,1)}_{(4,1)} = (2,1)^{(3,1)}_{4,1}\)? Or Is it applicable only to the suffix in the right bottom?

oooh it is applicable to every 0 except the case of \((\bullet)_{(\bullet_2)}^0 because i defined that exact case