منابع مشابه
9 Binary relations and binary relationships 10 Binary relationships
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: Child Abuse & Neglect
سال: 2004
ISSN: 0145-2134
DOI: 10.1016/j.chiabu.2004.07.002