On 6/24/07, Arie Groeneveld <[EMAIL PROTECTED]> wrote:
> Any permutations not in p are unsolvable as each of the valid
> moves are self inverting:
>   o{"1 o{"1 n

For my understanding this means the product of f*f = identity

Indexing is not commutative
  q=:1|.o
  o{"1 o{"1 q{"1 q{"1 n
  o{"1 q{"1 o{"1 q{"1 n

--
Raul
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