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BUILT-IN MATHEMATICA SYMBOL
LessEqual 
or 
yields True if x is determined to be less than or equal to y.
yields True if the 
form a nondecreasing sequence.
Details
can be entered as x Esc<=Esc y or 
. - LessEqual gives True or False when its arguments are real numbers.
- LessEqual does some simplification when its arguments are not numbers.
- For exact numeric quantities, LessEqual internally uses numerical approximations to establish numerical ordering. This process can be affected by the setting of the global variable $MaxExtraPrecision.
- In StandardForm, LessEqual is printed using
. 
, entered as x Esc</Esc y or x\[LessSlantEqual]y, can be used on input as an alternative to 
.
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