English
The bitwise XOR of (bit a m) and (bit b n) equals bit (a ⊕ b) (lxor m n).
Русский
Побитовый XOR: bit (a m) xor bit (b n) = bit (a ⊕ b) (lxor m n).
LaTeX
$$$$ \operatorname{lxor\_{bit}}(a,m,b,n) = \operatorname{bit}(a \oplus b)(\operatorname{lxor} m n). $$$$
Lean4
@[simp]
theorem lxor_bit (a m b n) : Int.xor (bit a m) (bit b n) = bit (xor a b) (Int.xor m n) := by
rw [← bitwise_xor, bitwise_bit]