PHIL 24320 Lecture Notes - Lecture 7: Observation, Bayesian Network
Document Summary
Only reason someone could discover a fact is because that fact was there to be discovered. So it"s true that fact can be fact without ever being proven or verified or discovered. To the professor: it is a fact that p and it is true that p mean the same thing. If something is a mere opinion, you can"t say that it"s a fact. Need to be restricted to true and false because we know what true and false means, but the definitions of fact and opinion are ambiguous. Ayer has a view that says that for any statement s, if s is true or false, then either. A. experience/observation could support (not prove) the truth of s or. B. experience/observation could discredit (not disprove) the truth of s (support the truth of not-s) or. C. s is true by definition or. D. s is false by definition (not-s is true).
