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#### 10.2.20 unbound-variable [Condition Type]

#### Class Precedence List::

unbound-variable, cell-error, error, serious-condition, condition, t

#### Description::

The type unbound-variable consists of error conditions that represent attempts to read the value of an unbound variable.

The name of the cell (see cell-error) is the name of the variable that was unbound.

#### See Also::

cell-error-name