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- New webpage at www.vadimkulikov.org March 24, 2017
- (Ir)rational Behavior of Calculation October 18, 2011
- The Product of Topological Spaces Does Not Obey Cancellation October 12, 2011
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- Douglas Hofstadter: I Am a Strange Loop. August 15, 2011
- 0.999999……=1? (continuation) July 10, 2011
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Monthly Archives: June 2010
Euler’s Riddle
Please comment your solutions, questions and remarks.. I found in a recreational book the following riddle attributed to Leonard Euler. The book gives a clumsy solution involving solutions of quadratic equations, a lot of fractions and half a page of … Continue reading
Posted in Algebra, Mathematics, Recreation, Wednesday Problem
2 Comments
How To Find Your Way Out of Woods
Please comment your solutions, questions and remarks.. A lumberjack got lost in a forest. He knows that the area of the forest is S and that there are no meadows in the forest. Show that he can get out from … Continue reading
Posted in Geometry, Mathematics, Recreation, Wednesday Problem
3 Comments
The Most Important Relation In Mathematics 1
Part 1: Basics In this and few following posts I will argue that not only in mathematics, but in all human reasoning, the role of equivalence relations is crucial. The notion of an equivalence relation is the key to any … Continue reading
Posted in Education, Foundations, Mathematics, Philosophy
3 Comments