- The typical default setting is Assumptions:>$Assumptions.
- The assumptions can be equations, inequalities, or domain specifications, or lists or logical combinations of these.
- Assuming modifies $Assumptions and so modifies the value of default settings for Assumptions options.
- xReals can be used to specify that x should be treated as a real variable.
- Quantities that appear algebraically in inequalities are always assumed to be real.
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