def p_len_of_list
import bend-osdev-bytes@0.1.1.0/PROOF.bend as PROOFimport Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B
1123def p_len_of_list(+xs: List<&2, U32>) -> {B.Octets.len(B.Octets.of_list(xs)) == B.len(xs) : Nat}:
1124 %F_of(xs) : {B.w8s.len.fast(_) == B.len(xs) : Nat}
1125 %F_len(B.w8s.of_list(xs)) : {_ == B.len(xs) : Nat}
1126 off.len_of(xs)