User blog comment:The Gamer Of Roblox 2019/Keyarrow Notation?/@comment-35470197-20191124224234/@comment-39448260-20191127002937

I will give you a simple and not long explanation.

since these umbers might be ill-defined, let's replace c with b, and b with any number.

a|1|b = a^b^b.

a|2|b = a|1|(a|1|b) = a^(a^b^b)^(a^b^b)

a|3|b = a|2|(a|1|b) = a^(a^(a^b^b)^(a^b^b))^(a^(a^b^b)^(a^b^b))