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The alternating group of degree 5 and the icosahedron rotations: seeing not only proving
Preprint
2016-01-29
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Abstract
When compared with pure mathematicians, applied ones have a clear preference for proofs that go beyond a chain of reasonings and do exhibit the fact to be proved. Here we exhibit the bijection between the 60 icosahedron rotations of the group R and the 60 permutations of the group A5.