Binary Love relations
نویسندگان
چکیده
منابع مشابه
Binary Relations
The notion of a relation between two sets of objects is quite common and intuitively clear. Let X be the set of all living human females and Y the set of all living human males. The wife-husband relation R can be defined from X to Y . Thus, if x ∈ X and y ∈ Y , then x is related to y by the relation R if x is a wife of y, and we write xRy. To describe the relation R, we may take the collection ...
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Example 9.1. Here are some relationships that might hold between two real numbers x and y: x is less than y, abbreviated x < y. Similarly x ≤ y, x ≥ y and x > y. y is the square of x, which is abbreviated by y = x, x is within ε of y. Here ε ≥ 0 and this relationship means |x− y| ≤ ε. y is the image of x under f , where f is a function from R to R. This relationship is abbreviated y = f(x). Not...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2016
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/33/13/13lt01