IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
Moving one disk leaves the others in place.
At:
hanoi step at same n:, f,g:({1...n}Peg), k,i:{1...n}.
Moving disk k of n takes f to gikf(i) = g(i)