  As philosophers usually do, Aristotle cites simple or familiar examples from contemporary mathematics, although we should keep in mind that even basic geometry such as we find in Euclid's Elements would have been advanced studies. The average education in mathematics would have been basic arithmetical operations (possibly called logistikê) and metrological geometry (given certain dimensions of a figure, to find other dimensions), such as were also taught in Egypt. Aristotle does allude to this sort of mathematics on occasion, but most of his examples come from the sort of mathematics which we have come to associate with Greece, the constructing of figures from given figures and rules, and the proving that figures have certain properties, and the ‘discovery’ of numbers with certain properties or proving that certain classes of numbers have certain properties. If we attend carefully to his examples, we can even see an emerging picture of elementary geometry as taught in the Academy. In the supplement are provided twenty-five of his favorite propositions (the list is not exhaustive). 