1. ‘A categorical approach to the semantics of argumentation’;Ambler,1992
2. Non-monotonic reasoning, non-monotonic logics and reasoning about change;Bell;Artificial Intelligence Review,1990
3. Bernoulli, J. (1713) “Ars Conjectandi”. Reprinted in 1968 by Culture et Civilisation, 115 Avenue Gabriel Lebon, Brussels.).
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5. “Heuristic Reasoning about Uncertainty”;Cohen,1985