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nulatative appeared in the first book of David Brin 's Brightness Reef (The Uplift Trilogy, Book 1), a heroine contemplating types or methods of logical thought, makes a list including: Inductive, Intuitive, Deductive, ... and Nulatative. Conjectures and Refutations: The Growth of Scientific Knowledge (Routledge Classics) by Karl Popper makes the historical scientific case for proper advancing of our knowledge. I understand that hypothesis cannot be proven, but can only be disproved. The proof of the hypothesis (p) to be false, allows, perhaps assures, the potential truth of the alternate statement (not p).
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