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The #ifexist function selects one of two alternatives depending on whether a page exists at the specified title. {{#ifexist: page title | value if page exists | value if page doesn't exist}} The page can be in any namespace, so it can be an article or "content page", an image or other media file, a category, etc.
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These examples, one from mathematics and one from natural language, illustrate the concept of vacuous truths: "For any integer x, if x > 5 then x > 3." [11] – This statement is true non-vacuously (since some integers are indeed greater than 5), but some of its implications are only vacuously true: for example, when x is the integer 2, the statement implies the vacuous truth that "if 2 > 5 ...
J.P. MACDONOUGH: What's your relationship like with both of them? MATTHEW EDGAR: It's awesome. J.P. MACDONOUGH: OK. So, it's not a typical, "I hate your guts"?
2. Low-Fat Dairy. Low-fat dairy is another category of high-protein options that are easy to use and found at a reasonable price. Low-fat milk, yogurt and cottage cheese are all excellent sources ...
(Reuters) - Amazon is donating $1 million to U.S. President-elect Donald Trump's inaugural fund and the company will air the event on its Prime Video service, an Amazon spokesperson said on Thursday.
If none of the listed categories currently exists, then a warning message is displayed when the page is being previewed: Template:Category see also if exists — no output, because none of the categories currently exists. This warning is displayed just below the "Preview" heading, and just above the page preview area. It is not displayed when ...
In mathematics, a proof by infinite descent, also known as Fermat's method of descent, is a particular kind of proof by contradiction [1] used to show that a statement cannot possibly hold for any number, by showing that if the statement were to hold for a number, then the same would be true for a smaller number, leading to an infinite descent and ultimately a contradiction. [2]