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  2. Help:Table/Advanced - Wikipedia

    en.wikipedia.org/wiki/Help:Table/Advanced

    Also, if the table has cell spacing (and thus border-collapse=separate), meaning that cells have separate borders with a gap in between, that gap will still be visible. A cruder way to align columns of numbers is to use a figure space   or  , which is intended to be the width of a numeral, though is font-dependent in practice:

  3. Ordinal collapsing function - Wikipedia

    en.wikipedia.org/wiki/Ordinal_collapsing_function

    In mathematical logic and set theory, an ordinal collapsing function (or projection function) is a technique for defining (notations for) certain recursive large countable ordinals, whose principle is to give names to certain ordinals much larger than the one being defined, perhaps even large cardinals (though they can be replaced with recursively large ordinals at the cost of extra technical ...

  4. Help:Table - Wikipedia

    en.wikipedia.org/wiki/Help:Table

    Using the border-collapse property to combine the double borders, ... Table/example row template | 8 ... which can collide with template and parser function syntax;

  5. Ordinal analysis - Wikipedia

    en.wikipedia.org/wiki/Ordinal_analysis

    This is a list of symbols used in this table: ψ represents various ordinal collapsing functions as defined in their respective citations. Ψ represents either Rathjen's or Stegert's Psi. φ represents Veblen's function. ω represents the first transfinite ordinal. ε α represents the epsilon numbers.

  6. Fold (higher-order function) - Wikipedia

    en.wikipedia.org/wiki/Fold_(higher-order_function)

    Folds can be regarded as consistently replacing the structural components of a data structure with functions and values. Lists, for example, are built up in many functional languages from two primitives: any list is either an empty list, commonly called nil ([]), or is constructed by prefixing an element in front of another list, creating what is called a cons node ( Cons(X1,Cons(X2,Cons ...

  7. Code folding - Wikipedia

    en.wikipedia.org/wiki/Code_folding

    The earliest known example of code folding in an editor is in NLS. [3] Probably the first widely available folding editor was the 1974 Structured Programming Facility (SPF) editor for IBM 370 mainframes, which could hide lines based on their indentation. It displayed on character-mapped 3270 terminals. [4]

  8. Help:Advanced table formatting - Wikipedia

    en.wikipedia.org/wiki/Help:Advanced_table_formatting

    Expected outcome: Adjacent cells should have no borders when their borders are specifically styled with border: none; or border-collapse: collapse;. Actual outcome: The borders persist when using the wikitable class unless the cells are aligned along the same row or column.

  9. Rathjen's psi function - Wikipedia

    en.wikipedia.org/wiki/Rathjen's_psi_function

    In mathematics, Rathjen's psi function is an ordinal collapsing function developed by Michael Rathjen. It collapses weakly Mahlo cardinals M {\displaystyle M} to generate large countable ordinals . [ 1 ]