English
For booleans a,b and integers m,n, lor (bit a m) (bit b n) equals bit (a ∨ b) (lor m n).
Русский
Для булевых a,b и целых m,n: lor (bit a m) (bit b n) = bit (a ∨ b) (lor m n).
LaTeX
$$$$ \operatorname{lor\_{bit}}(a,m,b,n) = \operatorname{bit}(a \lor b)(\operatorname{lor} m n). $$$$
Lean4
@[simp]
theorem lor_bit (a m b n) : lor (bit a m) (bit b n) = bit (a || b) (lor m n) := by rw [← bitwise_or, bitwise_bit]