At the end of the next phrase, the word ‘world'(yes, that world ‘word’) must be replaced by the word ‘ones‘(you know it is just another ‘one’among lot of ones you probably know but it makes sense from the english grammar point of view). The ‘s’ is not a mistake, so it is needed to correct one of the previous ones for whom the ‘s’ is a mistake. Inside the book “Endexcentrism”-that you can find in this web page-, there is the same mistake.

“There is a closed relationship between philosophy and pure mathematics. Both as a set are the art of thinking of people that explore fantastic worlds, finding by casualty real worlds.