Logic.xla calculates an "exclusive or" function, P Å Q

In logic, P Å Q Û (P Ú Q) L ~(P L Q)

Syntax: "=EXOR(argument1,argument2)",	
where argument1 and argument2 have a value of true or false.

Note: A value of 1 may be substituted for "TRUE" and 0 may be
substituted for "FALSE".  In the table below, Excel's built-in
logic functions were used to produce the values below the columns
labeled (P Ú Q), ~(P L Q),  and (P Ú Q) L ~(P L Q), where arguments are P and Q.
The values below P Å Q were generated using the EXOR function.

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