Columbia subject headings:
Harvard subject headings:
Conditionals (Logic)
Evidence.
Harrod, Roy Forbes, Sir, 1900- Foundations of inductive logic.
Hume, David, 1711-1776
Probabilities
Princeton subject headings:
Conditionals (Logic)
Evidence.
Harrod, Roy, 1900-1978 Foundations of inductive logic.
Hume, David, 1711-1776.
Probabilities.