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On Relations Versus Relational Properties

In predicate logic you can take an (n+1)-arity predicate and rewrite it using n-arity predicates without loss, but only down as far as n=2. So, for example, you can rewrite a ternary predicate using ...
Bumble's user avatar
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2 votes

On Relations Versus Relational Properties

A relation between two sets X and Y is a subset R of the Cartesian product R subset X x Y Here R is the set of all ordered pairs (x,y) from XxY such that x relates to y. Not all relations are ...
Jo Wehler's user avatar
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