IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
hanoi sol2 ala general2 1. n : 2. 0<n 3. p,q:Peg.
3. pq 3. 3. (a:.
3. (z:{a...}, s:({a...z}{1...n-1}Peg).
3. (s is a Hanoi(n-1 disk) seq on a..z & s(a) = (i.p) & s(z) = (i.q))
4. p : Peg
5. q : Peg
6. pq 7. a : z:{a...}, s:({a...z}{1...n}Peg).
s is a Hanoi(n disk) seq on a..z & s(a) = (i.p) & s(z) = (i.q)
By:
z:{a...}, m:{a...z-1}, s1:({a...m}{1...n}Peg),
s2:({m+1...z}{1...n}Peg).
(s1 @(m) s2) is a Hanoi(n disk) seq on a..z & s1(a) = (i.p) & s2(z) = (i.q)
Asserted