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In ordinary English (also natural language) "necessary" and "sufficient" indicate relations between conditions or states of affairs, not statements. For example, being a man is a necessary condition for being a brother, but it is not sufficient—while being a man sibling is a necessary and sufficient condition for being a brother.
The absence these conditions guarantees the outcome cannot occur, and no other condition can overcome the lack of this condition. Further, necessary conditions are not always sufficient. For example, AIDS necessitates HIV, but HIV does not always cause AIDS. In such instances, the condition demonstrates its necessity but lacks sufficiency.
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Necessary and sufficient condition, in logic, something that is a required condition for something else to be the case; Necessary proposition, in logic, a statement about facts that is either unassailably true (tautology) or obviously false (contradiction) Metaphysical necessity, in philosophy, a truth which is true in all possible worlds
X would be a necessary cause of y when the occurrence of y implies that x needed to have occurred. However, only the occurrence of the necessary condition x may not always result in y also occurring. [2] In other words, when some factor is necessary to cause an effect, it is impossible to have the effect without the cause. [3]
Free music download websites (7 P) T. Tucows (6 P) Pages in category "Download websites" The following 12 pages are in this category, out of 12 total.
LONDON (AP) — Three of the world's biggest porn websites face new requirements in the European Union that include verifying the ages of users, the 27-nation bloc said Wednesday, expanding the ...
Web sites that violate any rules will be subject to a 5-year ban from providing videos online. [6] One of the country's most used file sharing programs, BTChina got shut down in December 2009. It was shut down by the State Administration of Radio Film and Television for not obtaining a license to legally distribute media such as audio and video ...