Nov 26, 2012

THE FIRST CRISIS IN THE FOUNDATION OF MATHEMATICS_Documented by Marsigit



THE CRISIS IN THE FOUNDATION OF MATHEMATICS
[Crisis #1]
Downfall of the Pythagoreans
1.  Commensurability is false (found irrational numbers)

2.  Infinite divisibility and discreteness seem inconsistent

Zeno's paradoxes of motion (4 main paradoxes) attack philosophical theories of motion which parallel a Pythagorean view of reality.
The paradox of the arrow—it is impossible for an arrow to move at any instant of time, the arrow travels over no space, thus it is stationary if an interval of time is a continuum of instants, the arrow doesn't move during any of the instants, thus it doesn't move during the entire interval either.
Thus, the Pythagorean world view was internally inconsistent.


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