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A Relational Derivation of a Functional Program (1992)
Conference Proceeding
Hutton, G. (1992). A Relational Derivation of a Functional Program

This article is an introduction to the use of relational calculi in deriving programs. Using the relational caluclus Ruby, we derive a functional program that adds one bit to a binary number to give a new binary number. The resulting program is uns... Read More

Making Functionality More General (1992)
Conference Proceeding
Hutton, G., & Voermans, E. (1992). Making Functionality More General

The definition for the notion of a "function" is not cast in stone, but depends upon what we adopt as types in our language. With partial equivalence relations (pers) as types in a relational language, we show that the functional relations are preci... Read More