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  2. Wikipedia:List of English contractions - Wikipedia

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

    Some acronyms are formed by contraction; these are covered at Wikipedia:Manual of Style/Abbreviations. Some trademarks (e.g. Nabisco) and titles of published works (e.g. “Ain't That a Shame”) consist of or contain contractions; these are covered at Wikipedia:Manual of Style/Trademarks and Wikipedia:Manual of Style/Titles, respectively.

  3. Subject–auxiliary inversion - Wikipedia

    en.wikipedia.org/wiki/Subject–auxiliary_inversion

    When the movement rule applies, it moves the auxiliary to the beginning of the sentence. [ 5 ] An alternative analysis does not acknowledge the binary division of the clause into subject NP and predicate VP, but rather it places the finite verb as the root of the entire sentence and views the subject as switching to the other side of the finite ...

  4. Restricted representation - Wikipedia

    en.wikipedia.org/wiki/Restricted_representation

    Rules for decomposing the restriction of an irreducible representation into irreducible representations of the subgroup are called branching rules, and have important applications in physics. For example, in case of explicit symmetry breaking , the symmetry group of the problem is reduced from the whole group to one of its subgroups.

  5. Structural rule - Wikipedia

    en.wikipedia.org/wiki/Structural_rule

    A logic without any of the above structural rules would interpret the sides of a sequent as pure sequences; with exchange, they can be considered to be multisets; and with both contraction and exchange they can be considered to be sets. These are not the only possible structural rules. A famous structural rule is known as cut. [1]

  6. English Braille - Wikipedia

    en.wikipedia.org/wiki/English_Braille

    For example, ⠙ ⠁ da preceded by a number sign, ⠼ ⠙ ⠁, is read as 41. If instead 4a is intended (as in a section or apartment number), then the letter sign is used to force a reading of a rather than 1 for the final character: ⠼ ⠙ ⠰ ⠁ 4a . [25] It is also used to mark a character as standing for a letter rather than for a word.

  7. Feynman diagram - Wikipedia

    en.wikipedia.org/wiki/Feynman_diagram

    The rules for spin-⁠ 1 / 2 ⁠ Dirac particles are as follows: The propagator is the inverse of the Dirac operator, the lines have arrows just as for a complex scalar field, and the diagram acquires an overall factor of −1 for each closed Fermi loop. If there are an odd number of Fermi loops, the diagram changes sign.

  8. Interior product - Wikipedia

    en.wikipedia.org/wiki/Interior_product

    The interior product is defined to be the contraction of a differential form ... The above relation says that the interior product obeys a graded Leibniz rule. An ...

  9. Lombard's paradox - Wikipedia

    en.wikipedia.org/wiki/Lombard's_paradox

    Lombard's paradox describes a paradoxical muscular contraction in humans. When rising to stand from a sitting or squatting position, both the hamstrings and quadriceps contract at the same time, despite them being antagonists to each other. The rectus femoris biarticular muscle acting over the hip has a smaller hip moment arm than the ...