User blog comment:Alejandro Magno/ExE array of/@comment-24.103.234.74-20141022005105

This doesn't actually help much. If no caret tops are allowed then what does #^^## expand to? What system does it diagonalize over? If & and the higher operators in ExE are not allowed then how do you continue past stuff like {#,#,1,2}? This explains nothing really. And why have you still not corrected  E_&(#+m)_n = En#n#n.