ProofSolver.around_ok.cell: def of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/proof_solver.bend as ProofSolver
Lines 1671-1682 of minebender-game@1.0.0.0/proof_solver.bend: https://jend.leeeet.dev/read.txt?path=minebender-game@1.0.0.0/proof_solver.bend&start_line=1671&end_line=1682

import Base
import minebender-game@1.0.0.0/types.bend as T
import minebender-game@1.0.0.0/solver.bend as S

def around_ok.cell(+b: Bool, +i: S.Item, +rest: List<&2, S.Item>, +layout: T.Grid(Bool),
  hi: {S.items_ok([i], layout) == True{} : Bool}, hr: {S.items_ok(rest, layout) == True{} : Bool}) ->
  {S.items_ok(List.filter.put(S.Item, i, rest, b), layout) == True{} : Bool}:
  match b:
    case False{}:
      hr
    case True{}:
      match i:
        case S.Item{p, s, ns}:
          %Equal.sym(Bool, S.items_ok(rest, layout), True{}, hr) :
            {Bool.and(S.item_ok(s, p, ns, layout), _) == True{} : Bool}
          hi

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.filter.put
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=Item
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=item_ok
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=items_ok
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Grid