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Nelsen R. Proofs without Words I. Exercises in Visual Thinking 1997.pdf
5.15MB
Nelsen R. Proofs Without Words III. Further exercises in visual thinking 2015.pdf
26.9MB
Nelsen R. Proofs without words II. More exercises in visual thinking 2000.pdf
42.26MB
Nelsen R, Proofs Without Words. Exercises in Visual Thinking 1993.pdf
80.97MB
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