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  2. Phrase structure rules - Wikipedia

    en.wikipedia.org/wiki/Phrase_structure_rules

    It is also to be expected that the rules will generate syntactically correct but semantically nonsensical sentences, such as the following well-known example: Colorless green ideas sleep furiously This sentence was constructed by Noam Chomsky as an illustration that phrase structure rules are capable of generating syntactically correct but ...

  3. Apriori algorithm - Wikipedia

    en.wikipedia.org/wiki/Apriori_algorithm

    Apriori [1] is an algorithm for frequent item set mining and association rule learning over relational databases.It proceeds by identifying the frequent individual items in the database and extending them to larger and larger item sets as long as those item sets appear sufficiently often in the database.

  4. Rule of inference - Wikipedia

    en.wikipedia.org/wiki/Rule_of_inference

    An example of a rule that is not effective in this sense is the infinitary ω-rule. [1] Popular rules of inference in propositional logic include modus ponens, modus tollens, and contraposition. First-order predicate logic uses rules of inference to deal with logical quantifiers.

  5. List of file formats - Wikipedia

    en.wikipedia.org/wiki/List_of_file_formats

    LIST – variable list Mach-O – (no suffix for executable image, .o for object files, .dylib and .bundle for shared object files) Mach -based systems, notably native format of macOS , iOS , watchOS , and tvOS

  6. Differentiation rules - Wikipedia

    en.wikipedia.org/wiki/Differentiation_rules

    Logarithmic differentiation is a technique which uses logarithms and its differentiation rules to simplify certain expressions before actually applying the derivative. [ citation needed ] Logarithms can be used to remove exponents, convert products into sums, and convert division into subtraction — each of which may lead to a simplified ...

  7. Help:Referencing for beginners - Wikipedia

    en.wikipedia.org/wiki/Help:Referencing_for_beginners

    The word "source" in Wikipedia has three meanings: the work itself (for example, a document, article, paper, or book), the creator of the work (for example, the writer), and the publisher of the work (for example, Cambridge University Press). All three can affect reliability.

  8. List of forms of government - Wikipedia

    en.wikipedia.org/wiki/List_of_forms_of_government

    Term Description Examples Autocracy: Autocracy is a system of government in which supreme power (social and political) is concentrated in the hands of one person or polity, whose decisions are subject to neither external legal restraints nor regularized mechanisms of popular control (except perhaps for the implicit threat of a coup d'état or mass insurrection).

  9. List of presidents of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_presidents_of_the...

    The White House, official residence of the president of the United States, in July 2008. The president of the United States is the head of state and head of government of the United States, [1] indirectly elected to a four-year term via the Electoral College. [2]