Let's call the boolean values A and B.

You have two options:

• A <> B
• (A or B) and not (A and B)

Both formulations simulate a XOR gate. The <> operator is effective a xor operator when applied to two booleans.

Example use case:

    #"Next Step" = Table.SelectRows(#"Previous Step", each ([NAME] = "Jim") <> ([AGE] = 2))

This would select all Jims and all 2-year olds, but not Jims who are two years old.