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...s less than 70 million, but subsequent work by others including the highly collaborative efforts of the [[Polymath Project]] reduced this bound to 246,{{r|hunacek|b ...ing creative visual demonstrations of mathematical concepts, and inspiring collaborative techniques in education.{{r|fried}} ...

...ate 1934, a group of mathematicians including [[André Weil]] resolved to [[collaborative writing|collectively]] write a [[textbook]] on [[mathematical analysis]]. T [[Category:Collaborative non-fiction]] ...

...or, when a male directs that his sperm is to be used by a specific person. Non-anonymous donors are also called "known donors", "open donors" or "identity ...donors are anonymous at the point of donation and recipients can only see non-identifying information about their donor (e.g., height, weight, ethnicity, ...

...and the expanded and general forms are intermediary expressions between a non-monetary and a monetary expression of economic value. The four steps are an *Market and non-market methods of allocating resources may combine, and they can combine in ...