NestedLessLess
 Usage
 \[NestedLessLess]
Notes
• Infix ordering operator. • x  y is by default interpreted as NestedLessLess[x, y]. • Used to denote "much less than". • Occasionally used in measure theory to denote "absolutely continuous with respect to". • See Section 3.10.4. • See also: \[LessLess] , \[NotLessLess] , \[NotNestedLessLess] .
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