Monotonic set function
From Maths
Revision as of 14:18, 18 March 2015 by Alec (Talk | contribs) (Created page with "Sometimes called '''Monotone set function'''. ==Definition== A set function {{M|f:E\rightarrow [0,\infty]\subset\mathbb{R} }} is '''monotonic'''<ref> p37 - Halmos, Measure T...")
Sometimes called Monotone set function.
Definition
A set function f:E→[0,∞]⊂R is monotonic[1] if for A,B∈E we have A⊆B⟹f(A)≤f(B)
We do not require a function that maps to [0,∞] any linearly ordered set will do. It will likely be encountered in this form though.
See also
References
- Jump up ↑ p37 - Halmos, Measure Theory, Springer Texts in mathematics - book 18