Multifunctions as Approximation Operations in Generalized Approximation Spaces

  • P. Maritz
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1424)


An approximation space can be defined as a quintuple \( \mathcal{A} = (T,U,F,\Phi ,\Gamma ) \), where F: T → U is a multifunction and Φ and Γ are unary operations on the power set of U.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • P. Maritz
    • 1
  1. 1.StellenboschSouth Africa

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