User blog comment:Wythagoras/Dollar function part 1/@comment-29014792-20160724154336


 * x$1 = f_0
 * x$[0] = x$x = f_1
 * x$[0][0] = x$x[0] = x+x$[0] = f_1^2
 * x$[1] = x$[0][0]...[0][0] /w x [0]s = f_1^x ~ f_2
 * x$[2] = x$[1][1]...[1][1] /w x [1]s = f_2^x ~ = f_3
 * x$0 = x$[x] = f_(x+1) ~ f_w
 * x$[1[0]] (same like [x]) = f_(w+1)
 * x$0][0 = x$[x[0]] = f_(w+x+1) ~ f_(w2)
 * x$1 = f_(w*x) ~ f_(w^2)
 * x$[0] = f_(w^(x+1)) ~ f_(w^w)
 * x$[[0]] = f_(w^w^(x+1)) ~ = f_(w^w^w)