Philosophy of mathematics and natural science.
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Princeton
Princeton Univ. Press
1949.
|
| Edizioa: | Rev. and augm. English ed., based on a translation by Olaf Helmer. |
| Gaiak: |