RE>

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RATD.  Note 24

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Compositional Analysis of Relations (cont.)

Let's now look at a way of defining the relational composition
of 2-adic relations by exploiting the set-theoretic operational
resources of intersections, projections, and tacit extensions.
To be specific, I will define the relational composition of a
couple of 2-adic relations in terms of their respective tacit
extensions to 3-adic relat