ProofSolver.leaf_keep: def of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/proof_solver.bend as ProofSolver
Lines 1186-1196 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=1186&end_line=1196

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

def leaf_keep(+ctx: S.Ctx, +part: T.Grid(Maybe<&2, Bool>), +l: T.Grid(Bool), +q: T.Pos, +bq: Bool,
  lq: {S.look(part, q) == Some{bq} : Maybe<&2, Bool>},
  r: {S.fill(part) == l : T.Grid(Bool)} & {S.check(ctx, S.fill(part)) == True{} : Bool}) ->
  {B.mine(l, q) == bq : Bool}:
  match r:
    case (fl, ck):
      %fl : {B.mine(_, q) == bq : Bool}
      %Equal.sym(Bool, B.mine(S.fill(part), q), Maybe.default(&2, Bool, S.look(part, q), False{}), fill_at(part, q)) :
        {_ == bq : Bool}
      %Equal.sym(Maybe<&2, Bool>, S.look(part, q), Some{bq}, lq) : {Maybe.default(&2, Bool, _, False{}) == bq : Bool}
      {==}

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe.default
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/board.bend&name=mine
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/proof_solver.bend&name=fill_at
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=Ctx
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=check
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=fill
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/solver.bend&name=look
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Grid
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Pos