User blog comment:Tungster24/Tungster's Repeated Extension (Tungsten Extension)/@comment-36984051-20190625172106

Say f(x) = x+1. Then,

%[x,f(x),n] = f_1(n).

%[x,f(x),a,n] is approximately equal to f_2(n).

%[x,f(x),a,b,n] is approximately equal to f_3(n).

%[x,f(x),a,b,c,n] is approximately equal to f_4(n).

So %[x,f(x),z,(n,t)] is approximately equal to f_ω(n).