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  2. Borel–Cantelli lemma - Wikipedia

    en.wikipedia.org/wiki/BorelCantelli_lemma

    It is named after Émile Borel and Francesco Paolo Cantelli, who gave statement to the lemma in the first decades of the 20th century. [1] [2] A related result, sometimes called the second BorelCantelli lemma, is a partial converse of the first BorelCantelli lemma. The lemma states that, under certain conditions, an event will have ...

  3. Convergence of random variables - Wikipedia

    en.wikipedia.org/wiki/Convergence_of_random...

    This is a direct implication from the BorelCantelli lemma. If S n is a sum of n real independent random variables: = + + then S n converges almost surely if and only if S n converges in probability. The proof can be found in Page 126 (Theorem 5.3.4) of the book by Kai Lai Chung. [13]

  4. Proofs of convergence of random variables - Wikipedia

    en.wikipedia.org/wiki/Proofs_of_convergence_of...

    Proof: We will prove this statement using the portmanteau lemma, part A. First we want to show that (X n, c) converges in distribution to (X, c). By the portmanteau lemma this will be true if we can show that E[f(X n, c)] → E[f(X, c)] for any bounded continuous function f(x, y). So let f be such arbitrary bounded continuous function.

  5. Law of large numbers - Wikipedia

    en.wikipedia.org/wiki/Law_of_large_numbers

    Borel's law of large numbers, named after Émile Borel, states that if an experiment is repeated a large number of times, independently under identical conditions, then the proportion of times that any specified event is expected to occur approximately equals the probability of the event's occurrence on any particular trial; the larger the ...

  6. Limit inferior and limit superior - Wikipedia

    en.wikipedia.org/wiki/Limit_inferior_and_limit...

    The following are several set convergence examples. They have been broken into sections with respect to the metric used to induce the topology on set X. Using the discrete metric. The BorelCantelli lemma is an example application of these constructs. Using either the discrete metric or the Euclidean metric

  7. List of lemmas - Wikipedia

    en.wikipedia.org/wiki/List_of_lemmas

    BorelCantelli lemma; Doob–Dynkin lemma; Itô's lemma (stochastic calculus) ... An example of a covering described by the Knaster–Kuratowski–Mazurkiewicz lemma.

  8. Normal number - Wikipedia

    en.wikipedia.org/wiki/Normal_number

    The concept of a normal number was introduced by Émile Borel . Using the BorelCantelli lemma, he proved that almost all real numbers are normal, establishing the existence of normal numbers. Wacław Sierpiński showed that it is possible to specify a particular such number.

  9. Category:Covering lemmas - Wikipedia

    en.wikipedia.org/wiki/Category:Covering_lemmas

    BorelCantelli lemma; C. Covering lemma; ... Vitali covering lemma; W. Whitney covering lemma This page was last edited on 1 January 2018, at 13:47 (UTC) ...