Mathematical Congresses & Maths Year
Argentina
2000. International Mathematics year
| SG2729 | 75c | Mathematical symbol |
Austria
1981. International Austrian Mathematicians' congress
| SG1908 | 4s | Impossible construction (Escher) |
First day covers
Belgium
2000. World mathematical Year
| SG3561 | 17f | Mathematical formulae |
First day sheet
Czech Republic
2000. International Mathematics Year
| Sc3122 | 7k | Fermat's last theorem |
Finland
1978. International congress of Mathematicians, Finland
| SG936 | 1 markka | Function theory diagram |
First day cover
Federal Republic of Germany
1998. 23rd International congress of mathematicians, Berlin
| SG2862 | 110 pfennig | Congress's symbol |
Used postcard
First day cover
Luxembourg
2000. World mathematical year
| SG1522 | 80 franc | Symbols & formulae |
Monaco
2000. World mathematical year
| SG2470 | 6 francs 50 | Symbols |
Russia
1966. International congresses, Moscow
| SG3244 | 6 kopeks | Mathematics |
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