User blog comment:Googleaarex/Make an extension of the notation/@comment-5029411-20140926211035/@comment-25371339-20140928161316

Extension 14:

a;-b = a,,, ...- - -a with b levels

a;,-b = a;-(-)(-) (-) ...(-) (-) (-)   -a /w b (-)'s

a;,--b = a-;,,,...,,,-a with b commas

a;,-,--b = a;,-,,,...,,,-a /w b commas

a;;-b = a;,,, ...- - -a. with b levels

a;--b = a-;;;...;;;-a with b ;'s

a;-;--b = a;-;;;...;;;-a /w b ;'s

etc.

Limit is a;; ; ...- - -b.