However, a bit of work with a pencil and paper will show that it is easy to get such a minimal switch into conditions in which no single middle switch has a connection to both the needed input switch and the needed output switch.
Kako god, uz malo posla sa olovkom i papirom pokazaće se da je lako dobiti ovakav minimalni prekidač, u stanju u kom nijedan srednji prekidač nema vezu sa oba potrebna ulazna i izlazna prekidača.