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  2. Rule of three (writing) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(writing)

    The rule of three can refer to a collection of three words, phrases, sentences, lines, paragraphs/stanzas, chapters/sections of writing and even whole books. [2] [4] The three elements together are known as a triad. [5]

  3. Rule of three (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(computer...

    Rule of three ("Three strikes and you refactor") is a code refactoring rule of thumb to decide when similar pieces of code should be refactored to avoid duplication. It states that two instances of similar code do not require refactoring, but when similar code is used three times, it should be extracted into a new procedure.

  4. Rule of three - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three

    Rule of three (computer programming), a rule of thumb about code refactoring; Rule of three (hematology), a rule of thumb to check if blood count results are correct; Rule of three (mathematics), a method in arithmetic; Rule of three (medicinal chemistry), a rule of thumb for lead-like compounds; Rule of three (statistics), for calculating a ...

  5. Rule of three (C++ programming) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(C++...

    The rule of three (also known as the law of the big three or the big three) is a rule of thumb in C++ (prior to C++11) that claims that if a class defines any of the following then it should probably explicitly define all three: [1] destructor; copy constructor; copy assignment operator; These three functions are special member functions. If ...

  6. Chekhov's gun - Wikipedia

    en.wikipedia.org/wiki/Chekhov's_gun

    A rifle on display. Chekhov's gun (or Chekhov's rifle; Russian: Чеховское ружьё) is a narrative principle that states that every element in a story must be necessary and irrelevant elements should be removed.

  7. Context-free grammar - Wikipedia

    en.wikipedia.org/wiki/Context-free_grammar

    The language generated by a grammar is the set of all strings of terminal symbols that can be derived, by repeated rule applications, from some particular nonterminal symbol ("start symbol"). Nonterminal symbols are used during the derivation process, but do not appear in its final result string.

  8. Rule of three (rhetoric) - Wikipedia

    en.wikipedia.org/?title=Rule_of_three_(rhetoric...

    Pages for logged out editors learn more. Contributions; Talk; Rule of three (rhetoric)

  9. Rule of three (statistics) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(statistics)

    Comparison of the rule of three to the exact binomial one-sided confidence interval with no positive samples. In statistical analysis, the rule of three states that if a certain event did not occur in a sample with n subjects, the interval from 0 to 3/ n is a 95% confidence interval for the rate of occurrences in the population.