|n.||1.||The act of supposing, laying down, imagining, or considering as true or existing, what is known not to be true, or what is not proved.|
|2.||That which is supposed; hypothesis; conjecture; surmise; opinion or belief without sufficient evidence.|
This is only an infallibility upon supposition that if a thing be true, it is imposible to be false.
He means are in supposition.
|Noun||1.||supposition - a message expressing an opinion based on incomplete evidence|
|2.||supposition - a hypothesis that is taken for granted; "any society is built upon certain assumptions"|
|3.||supposition - the cognitive process of supposing|