["BIOGRAPHY & AUTOBIOGRAPHY \/ Science & Technology","Biography & Autobiography\/Science & Technology","MATHEMATICS \/ Arithmetic","MATHEMATICS \/ History & Philosophy","Mathematics\/Arithmetic","Mathematics\/History & Philosophy","Arithmetic","BIOGRAPHY & AUTOBIOGRAPHY","BIOGRAPHY & AUTOBIOGRAPHY \/ Science & Technology","Biography","Biography & Autobiography\/Science & Technology","Biography: science, technology & medicine","Biography: science, technology and medicine","British Isles","Great Britain","Great Britain\/British Isles","History","History & Philosophy","History of mathematics","Irrational numbers.","MATHEMATICS","MATHEMATICS \/ Arithmetic","MATHEMATICS \/ History & Philosophy","Math","Mathematical foundations","Mathematics\/Arithmetic","Mathematics\/History & Philosophy","Non-Fiction","Number theory.","Numbers, Real.","Philosophy of mathematics","Scholarly","Scholarly\/Undergraduate","Science","Science & Technology","Science\/Math","UNIVERSITY PRESS","Undergraduate","Biography: science, technology and medicine","History of mathematics","Mathematical foundations","Philosophy of mathematics","Biography: science, technology & medicine"]