The Impossibility of Double Gallows

[Wladimir D]

I agree with JKP that complex gallows can be their combinations. As I see it, I wrote in the message # 1, 5. You are not allowed to view links. Register or Login to view. But, an easy way is possible to write KK. This is the writing of the double loop on the right. I already gave an example on f17v, but I found another case in the B language on f113v.