def cnt.d15
import bend-osdev-acpi@0.1.1.0/PROOF.bend as PROOFimport Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B
1861def cnt.d15(+k: Nat, +lt: {Nat.is_lt(Nat.add(15n, k), 256n) == True{} : Bool}) -> {U32.to_nat(B.byte(U32.from_nat(Nat.add(15n, k)))) == Nat.add(15n, k) : Nat}:
1862 match k:
1863 case 0n:
1864 {==}
1865 case 1n+p:
1866 cnt.d16(p, lt)