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def p_at_drop

bend-osdev-bytes@0.1.1.0 · PROOF.bend:1259

import bend-osdev-bytes@0.1.1.0/PROOF.bend as PROOF
import Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B

1259def p_at_drop(+j: Nat, +o: B.Octets, +i: Nat) -> {B.Octets.at(B.Octets.drop(j, o), i) == B.Octets.at(o, Nat.add(j, i)) : Maybe<&2, U32>}:
1260  match o:
1261    case B.Octets{+ws}:
1262      Equal.cong(List<&2, B.OctByte>, Maybe<&2, U32>, l => B.w8s.at(l), B.w8s.drop(i, B.w8s.drop(j, ws)), B.w8s.drop(Nat.add(j, i), ws), off.drop_drop(j, i, ws))

Uses (13)

Used by (1)