Mathematical manuscripts of Karl Marx

The Mathematical manuscripts of Karl Marx consist mostly of Karl Marx's attempts to understand the foundations of infinitesimal calculus, from around 1873–1883. A Russian edition edited by Sofya Yanovskaya was eventually published in 1968, and an English translation was published in 1983 (Marx 1983). Marx appears to have been unaware of the rigorous foundations of the calculus that had been developed by Cauchy and Weierstrass (Kennedy 1978). This may have contributed to an interest in nonstandard analysis among Chinese mathematicians (Dauben 1998).