#Philosophical

[New Entry by Silvia De Toffoli and Paolo Mancosu on April 7, 2026.] "Philosophy of Mathematical Practice" (PMP) refers to a broad cluster of approaches in the philosophy of mathematics.…

[Revised entry by James Fetzer on March 16, 2026. Changes to: Main text, Bibliography] Carl G. Hempel (1905 - 1997) was the principal proponent of the "covering law" theory of explanation and the paradoxes of confirmation as basic elements of the theory…

[Revised entry by Thomas Oberdan and Friedrich Stadler on March 27, 2026. Changes to: Main text, Bibliography] Although Moritz Schlick (1882 - 1936) left a significant mark in the history of philosophy as the founder and nominal leader of the Vienna…