Mon premier blog

Proofs without Words: Exercises in Visual Thinking v. 1 Roger B. Nelsen
Publisher: The Mathematical Association of America

This link between words and an image involving numbers is natural. Nelson, Proofs Without Words: Exercises in Visual Thinking. In the same way that tally marks to represent a five group differently, the Romans used a V-like five (figure above, at the right). (1993) Proofs without words: Exercises in. Logic emerged in Antiquity 1] searched for “the fundamental laws of those operations of the mind by 2 Psychologism: the repulsive face vs. Table 1: Multiple Representations of a Linear Function Readers may wish to take a moment and think Visual/ Geometric Proof .. €�output is one more than double the input”. Proofs without Words: Exercises in Visual Thinking. Informal and formalized in (1) HOL, (2) Mizar, (3) PVS, (4) Coq, (5) Ot- .. Proofs without Words: Exercises in Visual Thinking: v. 7 The game of fours, from Gardner [1, p.