“An announcement of [Christopher] Zeeman's lecture at Northwestern University in the spring of 1977 contains a quote describing catastrophe theory as the most important development in mathematics since the invention of calculus 300 years ago.” YearsImportantScienceTheoryDevelopmentSpringYears AgoMathematicsUniversityInventionCatastropheLecturesDescribingCalculusAnnouncementsNorthwesternNorthwestern University Book:The Collected Papers of Stephen Smale Source: The Collected Papers of Stephen Smale
