(bit-xor x y) (bit-xor x y & more)
Bitwise exclusive or
;; set bits to 1 where bits of the arguments are different
user=> (bit-xor 2r1100 2r1001)
5
;; 5 = 2r0101
;; here is the truth table for XOR
(Integer/toBinaryString (bit-xor 2r1100 2r1010) )
;;=> "110"
;; or 2r0110