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  2. Dichotomy - Wikipedia

    en.wikipedia.org/wiki/Dichotomy

    In this image, the universal set U (the entire rectangle) is dichotomized into the two sets A (in pink) and its complement A c (in grey). A dichotomy / d aɪ ˈ k ɒ t ə m i / is a partition of a whole (or a set) into two parts (subsets). In other words, this couple of parts must be jointly exhaustive: everything must belong to one part or the ...

  3. Interchangeable parts - Wikipedia

    en.wikipedia.org/wiki/Interchangeable_parts

    Interchangeable parts are parts that are identical for practical purposes. They are made to specifications that ensure that they are so nearly identical that they will fit into any assembly of the same type. One such part can freely replace another, without any custom fitting, such as filing. This interchangeability allows easy assembly of new ...

  4. List of double placenames - Wikipedia

    en.wikipedia.org/wiki/List_of_double_placenames

    Three-word names for two-part entities are often ambiguous. For example, it may not be clear whether North Rhine-Westphalia is an amalgamation between the north part of the Rhine Province on the one hand and Westphalia on the other (true) or the northern division of some pre-existing place called Rhine-Westphalia (false). While this problem ...

  5. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    Rim: that part of a wheel to which the tire is attached and often forms part of the braking mechanism; Rotor: 1) the disc component of a disc brake. 2) another name for a detangler - a device that allows the handlebars and fork to revolve indefinitely without tangling the rear brake cable. Safety levers: extension levers, and interrupt brake ...

  6. 105 of the Best Two-Word Phrases for a Quick, Heartfelt ... - AOL

    www.aol.com/lifestyle/105-best-two-word-phrases...

    These short and sweet messages make a big statement.

  7. False dilemma - Wikipedia

    en.wikipedia.org/wiki/False_dilemma

    A false dilemma is an informal fallacy based on a premise that erroneously limits what options are available. [1] [2] [3] In its most simple form, called the fallacy of bifurcation, all but two alternatives are excluded.

  8. Wikipedia:List of spelling variants - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:List_of_spelling...

    Some usages identified as American English are common in British English; e.g., disk for disc. A few listed words are more different words than different spellings: "aeroplane/airplane", "mum/mom". See also: American and British English differences, Wikipedia:List of common misspellings and Wikipedia:Manual of Style#National varieties of English

  9. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and how to turn off 2-step verification if you need to.