1. Letter to the editor

   • Arthur M. Lesk
   • Cora Sadosky

   Department 02 May 2009 Pages: 4 - 6

2. Is mathematics “Out there”?

   • Martin Gardner

   Department 02 May 2009 Pages: 7 - 8

3. “Russian killer” no. 2: A challenging geometric theorem with human and machine proofs

   • Xiaorong Hou
   • Hongbo Li
   • Lu Yang

   Article 02 May 2009 Pages: 9 - 15

4. Between discovery and justification

   • Michael Harris
   • Mary Beth Ruskai

   Department 02 May 2009 Pages: 16 - 29

5. From the “last interview” with A.N. Kolmogorov

   • N. G. Khimchenko

   Article 02 May 2009 Pages: 30 - 38

6. A story of a painting

   • Wojbor A. Woyczyński

   Article 02 May 2009 Pages: 39 - 39

7. The importance of being formal

   • K. S. Makarychev
   • Yu. S. Makarychev

   Department 02 May 2009 Pages: 41 - 42

8. Semantic paradoxes as equations

   • Lan Wen

   Article 02 May 2009 Pages: 43 - 48

9. Overcoming math anxiety

   • Colin Adams

   Department 02 May 2009 Pages: 49 - 50

10. Erratum to: Constructions Using Conics

    • Bernard Genevès

    Erratum 02 May 2009 Pages: 50 - 50

11. Erratum to: Iterated strings and cellular automata

    • Oleksiy Andriychenko
    • Marc Chamberland

    Erratum 02 May 2009 Pages: 50 - 50

12. Magellan’s and elcano’s proof ...

    • Sasho Kalajdzievski

    Department 02 May 2009 Pages: 51 - 51

13. Curves in traditional architecture in East Asia

    • Hiroshi Yanai
    • Kim Williams

    Department 02 May 2009 Pages: 52 - 57

14. On serlio’s constructions of ovals

    • Paul L. Rosin

    Article 02 May 2009 Pages: 58 - 69

15. Reviews

    • Stephen Huestis
    • Gerald L. Alexanderson
    • Jet Wimp

    BookReview 02 May 2009 Pages: 70 - 77

16. Romanian mathematics

    Department 02 May 2009 Pages: 80 - 80