Grisha - I reckon we should leave this one, as we risk completely alienating the MtheGM's of this world. I'll just say I used the term "disproof" not be way of an accurate definition, but because that's how it had been labelled earlier. I've reread what I wrote and stand by it as long as we include the caveat I gave in my 03 Sep 13 - 09:09 post (epsilon bigger than zero).