Logical Operators

The logical operators are NOT, AND, and OR, in order of precedence. These operators have the usual Boolean logic semantics.

/FIXML/Order/Instrmt/@Sym = 'IBM' OR /FIXML/Order/Instrmt/@Sym = 'MSFT'

As with other operators, you can use parentheses to group operators and affect the order of evaluation.

/qty > 100 AND (/job = 'custom' OR /customerType = 'important')