PROOF.h.edel_miss.c: def of bend-kit-collections@0.1.4.1
Import: import bend-kit-collections@0.1.4.1/PROOF.bend as PROOF
Lines 2259-2271 of bend-kit-collections@0.1.4.1/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&start_line=2259&end_line=2271

import Base
import bend-kit-collections@0.1.4.1/hmap.bend as M

def h.edel_miss.c(
  ~K: Data, ~V: Data, ~eq: K -> K -> Bool, +key: K, +val: V,
  +rest: List<&2, M.Entry<K, V>>, +k: K, b: Bool,
  miss: {h.egc(~K, ~V, ~eq, b, val, rest, k) == None{} : Maybe<&2, V>},
  ih: {M.HMap.entries.get(~K, ~V, ~eq, rest, k) == None{} : Maybe<&2, V>}
    -> {M.HMap.entries.del(~K, ~V, ~eq, rest, k) == rest : List<&2, M.Entry<K, V>>}
) -> {h.edc(~K, ~V, ~eq, b, key, val, rest, k) == M.Entry{key, val} <> rest : List<&2, M.Entry<K, V>>}:
  match b:
    case True{}:
      h.some_none({rest == M.Entry{key, val} <> rest : List<&2, M.Entry<K, V>>}, V, val, miss)
    case False{}:
      Equal.cong(List<&2, M.Entry<K, V>>, List<&2, M.Entry<K, V>>, t => M.Entry{key, val} <> t,
        M.HMap.entries.del(~K, ~V, ~eq, rest, k), rest, ih(miss))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&name=h.edc
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&name=h.egc
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&name=h.some_none
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/hmap.bend&name=Entry
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/hmap.bend&name=HMap.entries.del
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/hmap.bend&name=HMap.entries.get