Demonic Operators and Monotype Factors

  title={Demonic Operators and Monotype Factors},
  author={Roland Carl Backhouse and Jaap van der Woude},
  journal={Mathematical Structures in Computer Science},
This paper tackles the problem of constructing a compact, point· free proof of the associativity of demonic composition of binary relations and its distributivity through demonic choice. In order to achieve this goal a definition of demoniC composition is proposed in which angelic composition is restricted by means of a so-called "monotype factor". Monotype factors are characterised by a Galois connection similar to the Galois connection between composition and factorisation of binary relations… CONTINUE READING

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