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Specifically, that two different procedures for determining that "at least one is a boy" could lead to the exact same wording of the problem. But they lead to different correct answers: From all families with two children, at least one of whom is a boy, a family is chosen at random. This would yield the answer of 1 / 3 .
This principle goes back at least as far as Aristotle, who wrote "Nature operates in the shortest way possible." [ 27 ] The idea of parsimony or simplicity in deciding between theories, though not the intent of the original expression of Occam's razor, has been assimilated into common culture as the widespread layman's formulation that "the ...
In predicate logic, an existential quantification is a type of quantifier, a logical constant which is interpreted as "there exists", "there is at least one", or "for some". It is usually denoted by the logical operator symbol ∃, which, when used together with a predicate variable, is called an existential quantifier (" ∃ x " or " ∃( x ...
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The Importance of Giving the Dog Agency. Agency refers to a dog’s ability to make choices and feel in control. It’s therefore important to avoid physically forcing a dog into the car.
The notation a ≥ b or a ⩾ b or a ≧ b means that a is greater than or equal to b (or, equivalently, at least b, or not less than b). In the 17th and 18th centuries, personal notations or typewriting signs were used to signal inequalities. [2] For example, In 1670, John Wallis used a single horizontal bar above rather than below the < and >.
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