Frank Plumpton Ramsey

Frank Plumpton Ramsey was a British philosopher and mathematician who made significant contributions to several fields, including confirmation theory, which deals with how scientific theories are supported by evidence. He argued that evidence affects our confidence in theories not by proving them definitively but by updating our beliefs based on new information. This perspective highlights the importance of probability in assessing theories, suggesting that we should evaluate evidence in terms of how much it raises or lowers our belief in a hypothesis. Ramsey's work laid foundational ideas for understanding rational belief and decision-making under uncertainty.