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Is mathematics a discovery or an invention?. Do numbers truly exist?. There are those things that are real and present, it is supposed, and then there are mathematical concepts- creations of our mind, mysterious tools for those unengaged with the world.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.