books.google.com - Virtually all philosophers treat mathematics as isolated, timeless, ahistorical, inhuman. In What Is Mathematics, Really? renowned mathematician Reuben Hersh argues the contrary. In a subversive attack on traditional philosophies of mathematics, most notably Platonism and formalism, he shows that mathematics...https://books.google.com/books/about/What_is_Mathematics_Really.html?id=R-qgdx2A5b0C&q=indubitable&utm_source=gb-gplus-shareWhat is Mathematics, Really?