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Restrict possible values of a symbolic object

Use assumptions to restrict the possible range of values of variables or expressions. For details, see Use Assumptions on Symbolic Variables. To verify if a condition holds, use isAlways.


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assumeSet assumption on symbolic object
assumeAlsoAdd assumption on symbolic object
assumptionsShow assumptions affecting symbolic variable, expression, or function
inNumeric type of symbolic input
piecewiseConditionally defined expression or function
isAlwaysCheck whether equation or inequality holds for all values of its variables
logicalCheck validity of equation or inequality