>>-getLogical(name-+----------+-)------------------------------><
                   +-,default-+

Returns the value of name as either .true or .false. The raw value of the name may be either the numeric values "0" or "1" or the string values "true" or "false". Any other value will raise a syntax error. If the property name does not exist and default has been specified, the default value will be returned. If default has not been specified, a syntax error is raised for missing values.