(3steps total) PrintForm Definitions Lemmas HanoiTowers Sections NuprlLIB Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
Moving one disk moves only that disk.

At: hanoi step at unique


  n:f,g:({1...n}Peg), i,k:{1...n}.
  Moving disk k of n takes f to g  f(i g(i i = k


By: Auto THEN Analyze-2


Generated subgoal:

1 1. n : 
2. f : {1...n}Peg
3. g : {1...n}Peg
4. i : {1...n}
5. k : {1...n}
6. i:{1...n}. f(i) = g(i i  k
7. i:{1...k-1}. f(i f(k) & g(i g(k)
8. f(i g(i)
  i = k

2 steps

About:
natural_numberapplyfunctionequalimpliesall
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

(3steps total) PrintForm Definitions Lemmas HanoiTowers Sections NuprlLIB Doc