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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 ...
By returning a null object (i.e., an empty list) instead, there is no need to verify that the return value is in fact a list. The calling function may simply iterate the list as normal, effectively doing nothing. It is, however, still possible to check whether the return value is a null object (an empty list) and react differently if desired.
The deposit gave consumers an incentive to return the bottle and "defrayed the cost of the bottle when it was not returned". [1] The Great Depression and "materials shortages" during World War II made the deposit system common for milk, beer, and soda bottles. [1] By 1947, bottle loss in the United States decreased to about 3 to 4%. [1]
By default, both the Trash and Spam folders empty automatically to keep your account tidy. These settings are set systemically and can't be changed. • Trash deletion frequency - Trash is deleted after 7 days. • Spam deletion frequency - Spam is deleted after 30 days.
Liz Graznak, center, arranges tomatoes as Happy Hollow Farm workers return empty bins to the trailer before the first customers arrive Sept. 14 at the Columbia Farmers Market.
Are your emails and contacts missing? If you haven't signed in to AOL Mail for 12 months or more, your mailbox is considered inactive. An inactive mailbox stops receiving new emails, and all mailbox contents, folders, contacts and settings are permanently deleted.
Sign into MyAccount.; If you aren't already on your Subscriptions page, click My Services | My Subscriptions.; Click Manage next to the plan you'd like to change.; Under products, click Change Plan.
According to legend, the sight or sound of the coach is the harbinger of death. It warns of imminent death to either oneself or to a close relative. [1] In Ireland in particular the death coach is seen as a signifier of the inevitability of death, as the belief goes once it has come to Earth it can never return empty. [2]