“Geometrie and Erfahrung (1921) pp. 3-4 link.springer.com as cited by Karl Popper, The Two Fundamental Problems of the Theory of Knowledge (2014) Tr. Andreas Pickel, Ed. Troels Eggers Hansen.”
Source: Wikiquote
“Geometrie and Erfahrung (1921) pp. 3-4 link.springer.com as cited by Karl Popper, The Two Fundamental Problems of the Theory of Knowledge (2014) Tr. Andreas Pickel, Ed. Troels Eggers Hansen.”
Source: Wikiquote