# representing relations - PowerPoint PPT Presentation

Using Matrices. For finite sets we can use zero-one matrices. Elements of each set A and B must be listed in some particular (but arbitrary) order. When A=B we use the same ordering for A and B.mij = 1 if (ai,bj) ??R = 0 if (ai,bj) ?R. Example Zero-One Matrix. b1b2b3. a1a2a3. R = {(a1,b1), (a1,b2), (a2,b2), (a3,b2), (a3,b3)}.

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