IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
hanoi step at otherpeg1 1. n : 2. f : {1...n}Peg
3. g : {1...n}Peg
4. k : {1...n}
5. Moving disk k of n takes f to g 6. f(k) g(k)
7. i : {1...k-1}
f(i) = otherPeg(f(k); g(k))
By:
Analyze-3
THEN
BackThru: Thm*x,y,z:Peg. xyxzyzx = otherPeg(y; z)