Conditional and Joint Existence Information and Inferences

  • Ellen Hisdal née Gruenwald
Part of the Studies in Fuzziness and Soft Computing book series (STUDFUZZ, volume 14)


We have already mentioned Nilsson’s example [66, p. 162] of the intelligent dolphins in this book in sect. 1.1, example 1.1.5, and in sect. 17.3.2. The complete treatment of the dolphin example in the chain set logic is given in sect. 17.3.2 here. It illustrates a typical conditional EXIST problem. Furthermore it illustrates an EXIST inference in the chain set logic which differs somewhat from the inference of predicate calculus. The difference is due to a symmetry of representation in predicate calculus between ‘dolphins’ and ‘intelligent object’ for the sentence ‘There exist some intelligent dolphins’. In contrast, in the chain set logic the representation is asymmetric.


Conditional Probability Joint Probability Relative Clause Venn Diagram Marginal Probability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Ellen Hisdal née Gruenwald
    • 1
  1. 1.Department of InformaticsUniversity of OsloOsloNorway

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