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• # Artykuł - szczegóły

## Formalized Mathematics

2014 | 22 | 3 | 199-204

## Events of Borel Sets, Construction of Borel Sets and Random Variables for Stochastic Finance

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### Abstrakty

EN
We consider special events of Borel sets with the aim to prove, that the set of the irrational numbers is an event of the Borel sets. The set of the natural numbers, the set of the integer numbers and the set of the rational numbers are countable, so we can use the literature [10] (pp. 78-81) as a basis for the similar construction of the proof. Next we prove, that different sets can construct the Borel sets [16] (pp. 9-10). Literature [16] (pp. 9-10) and [11] (pp. 11-12) gives an overview, that there exists some other sets for this construction. Last we define special functions as random variables for stochastic finance in discrete time. The relevant functions are implemented in the article [15], see [9] (p. 4). The aim is to construct events and random variables, which can easily be used with a probability measure. See as an example theorems (10) and (14) in [20]. Then the formalization is more similar to the presentation used in the book [9]. As a background, further literatures is [3] (pp. 9-12), [13] (pp. 17-20), and [8] (pp.32-35).

EN

199-204

wydano
2014-09-01
otrzymano
2014-07-10
online
2015-04-30

### Twórcy

autor
• Siegmund-Schacky-Str. 18a 80993 Munich, Germany

### Bibliografia

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