import Mathlib.Data.List.FinRange
import Mathlib.Tactic.Ring
import OAI.Computability.BinPacking.Computation.FinalCNFCleanup
import OAI.Computability.BinPacking.Computation.GraphIterationBounds
import OAI.Computability.BinPacking.PCP.MachineRawInitialTable

namespace OAI

namespace BinPackingGames.Foundations.Complexity.FinalCNFMachine.Program

section

open Turing PCP PCP.AlphabetTable FinalCNFTableAdapter

@[simp] theorem headRoles_zero : headRoles 0 = Tape.archive := rfl
@[simp] theorem headRoles_one : headRoles 1 = Tape.reverseIndex := rfl
@[simp] theorem headRoles_two : headRoles 2 = Tape.scanWork := rfl
@[simp] theorem headRoles_three : headRoles 3 = Tape.indexWork := rfl
@[simp] theorem headRoles_four : headRoles 4 = Tape.head := rfl
@[simp] theorem headRoles_five : headRoles 5 = Tape.scratch := rfl

def rowOperands (table : GraphTables.Table) (e : Fin table.darts) : Fin 5 → Nat :=
  values table.vertices table.darts table.rows[e].tail.val
    table.rows[table.rows[e].reverseIndex].tail.val e.val

def rowRelation (table : GraphTables.Table) (e : Fin table.darts) : Ambient :=
  ((), fun i => table.rows[e].relation[i])

def rowRest (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) : List Bool :=
  encodeWords (GraphTables.relationWords table.rows[e].relation) ++ rest

def preparedTapes (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) : Tape → List Bool :=
  Lookup.headLookupTapes headRoles
    (endpointTapes base table.rows[e].tail.val table.rows[e].reverseIndex.val
      (rowRest table e rest)) (genericTable table) e

theorem prepared_input (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) :
    preparedTapes base table e rest .input = rowRest table e rest := by
  simp [preparedTapes, Lookup.headLookupTapes, MachineLookup.tapes, endpointTapes,
    Hastad.SourceMachine.fieldTapes]

theorem prepared_head (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) :
    preparedTapes base table e rest .head =
      encodeWord table.rows[table.rows[e].reverseIndex].tail.val := by
  simp [preparedTapes, Lookup.headLookupTapes, MachineLookup.tapes,
    genericTable_headValue, GraphTables.semantics, ConstraintGraph.head,
    GraphTables.reverseAt]

theorem prepared_tail (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) :
    preparedTapes base table e rest .tail = encodeWord table.rows[e].tail.val ++ base .tail := by
  simp [preparedTapes, Lookup.headLookupTapes, MachineLookup.tapes, endpointTapes,
    Hastad.SourceMachine.fieldTapes]

theorem prepared_reverse (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) :
    preparedTapes base table e rest .reverseIndex =
      encodeWord table.rows[e].reverseIndex.val ++ base .reverseIndex := by
  simp [preparedTapes, Lookup.headLookupTapes, MachineLookup.tapes, endpointTapes,
    Hastad.SourceMachine.fieldTapes]

theorem prepared_frame (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) (tape : Tape)
    (hi : tape ≠ .input) (ht : tape ≠ .tail) (hr : tape ≠ .reverseIndex)
    (hh : tape ≠ .head) (hs : tape ≠ .scanWork) (hx : tape ≠ .indexWork) :
    preparedTapes base table e rest tape = base tape := by
  simp [preparedTapes, Lookup.headLookupTapes, MachineLookup.tapes, endpointTapes,
    Hastad.SourceMachine.fieldTapes, hi, ht, hr, hh, hs, hx]

def emittedTapes (plan : Plan) (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) : Tape → List Bool :=
  Function.update (Function.update (preparedTapes base table e rest) Tape.input rest)
    Tape.accumulator ((plan.flatMap (Emitter.commandBits (rowOperands table e)
      (rowRelation table e))).reverse ++ base .accumulator)

def rowResultTapes (plan : Plan) (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool) : Tape → List Bool :=
  finishTapes (emittedTapes plan base table e rest) e.val

@[simp] theorem rowResult_input (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) :
    rowResultTapes plan base table e rest .input = rest := by
  simp [rowResultTapes, finishTapes, emittedTapes]

@[simp] theorem rowResult_tail (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) :
    rowResultTapes plan base table e rest .tail = [] := by
  simp [rowResultTapes, finishTapes]

@[simp] theorem rowResult_head (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) :
    rowResultTapes plan base table e rest .head = [] := by
  simp [rowResultTapes, finishTapes]

@[simp] theorem rowResult_reverse (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) :
    rowResultTapes plan base table e rest .reverseIndex = [] := by
  simp [rowResultTapes, finishTapes]

@[simp] theorem rowResult_index (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) :
    rowResultTapes plan base table e rest .rowIndex = encodeWord (e.val + 1) := by
  simp [rowResultTapes, finishTapes]

@[simp] theorem rowResult_accumulator (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) :
    rowResultTapes plan base table e rest .accumulator =
      (plan.flatMap (Emitter.commandBits (rowOperands table e) (rowRelation table e))).reverse ++
        base .accumulator := by
  simp [rowResultTapes, finishTapes, emittedTapes]

theorem rowResult_frame (plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool) (tape : Tape)
    (hi : tape ≠ .input) (ht : tape ≠ .tail) (hr : tape ≠ .reverseIndex)
    (hh : tape ≠ .head) (hs : tape ≠ .scanWork) (hx : tape ≠ .indexWork)
    (ha : tape ≠ .accumulator) (hc : tape ≠ .rowIndex) :
    rowResultTapes plan base table e rest tape = base tape := by
  simp only [rowResultTapes, finishTapes, emittedTapes, Function.update_of_ne hi,
    Function.update_of_ne ht, Function.update_of_ne hr, Function.update_of_ne hh,
    Function.update_of_ne ha, Function.update_of_ne hc]
  exact prepared_frame base table e rest tape hi ht hr hh hs hx

def guardRowInTime (headerPlan plan : Plan) (base : Tape → List Bool)
    (ambient : Ambient) (hinput : base .input ≠ []) :
    StateTransition.EvalsToInTime (TM2.step (program headerPlan plan))
      ⟨some .guard, ((ambient, ()), none), base⟩
      (some ⟨some .startTail, ((ambient, ()), none), base⟩) 1 where
  steps := 1
  evals_in_steps := by
    change some (TM2.stepAux (program headerPlan plan .guard) _ _) = _
    cases hb : base .input with
    | nil => exact False.elim (hinput hb)
    | cons b bs => simp [program, guard, TM2.stepAux, hb]
  steps_le_m := Nat.le_refl _

def guardEndInTime (headerPlan plan : Plan) (base : Tape → List Bool)
    (ambient : Ambient) (hinput : base .input = []) :
    StateTransition.EvalsToInTime (TM2.step (program headerPlan plan))
      ⟨some .guard, ((ambient, ()), none), base⟩
      (some ⟨some .reverseOutput, ((ambient, ()), none), base⟩) 1 where
  steps := 1
  evals_in_steps := by
    change some (TM2.stepAux (program headerPlan plan .guard) _ _) = _
    simp [program, guard, TM2.stepAux, hinput]
  steps_le_m := Nat.le_refl _

theorem prepared_operands (base : Tape → List Bool) (table : GraphTables.Table)
    (e : Fin table.darts) (rest : List Bool)
    (hn : base .vertices = encodeWord table.vertices)
    (hm : base .darts = encodeWord table.darts)
    (hr : base .rowIndex = encodeWord e.val)
    (ht : base .tail = []) :
    ∀ i, (Function.update (preparedTapes base table e rest) Tape.input rest) (source i) =
      encodeWord (rowOperands table e i) := by
  intro i
  fin_cases i
  · simpa [source, rowOperands, values] using
      prepared_frame base table e rest .vertices (by decide) (by decide) (by decide)
        (by decide) (by decide) (by decide) |>.trans hn
  · change (Function.update (preparedTapes base table e rest) Tape.input rest) Tape.darts = _
    simp only [Function.update_of_ne (show Tape.darts ≠ Tape.input by decide)]
    exact (prepared_frame base table e rest .darts (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide)).trans hm
  · change (Function.update (preparedTapes base table e rest) Tape.input rest) Tape.tail = _
    simp only [Function.update_of_ne (show Tape.tail ≠ Tape.input by decide), prepared_tail,
      ht, List.append_nil]
    rfl
  · change (Function.update (preparedTapes base table e rest) Tape.input rest) Tape.head = _
    simp only [Function.update_of_ne (show Tape.head ≠ Tape.input by decide), prepared_head]
    rfl
  · change (Function.update (preparedTapes base table e rest) Tape.input rest) Tape.rowIndex = _
    simp only [Function.update_of_ne (show Tape.rowIndex ≠ Tape.input by decide)]
    exact (prepared_frame base table e rest .rowIndex (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide)).trans hr

theorem rowOperands_bounded (table : GraphTables.Table) (e : Fin table.darts) :
    ∀ i, rowOperands table e i ≤ (GraphTables.tableBits table).length := by
  intro i
  fin_cases i
  · exact GraphTables.vertices_le_tableBits_length table
  · exact GraphTables.darts_le_tableBits_length table
  · exact table.rows[e].tail.isLt.le.trans (GraphTables.vertices_le_tableBits_length table)
  · exact table.rows[table.rows[e].reverseIndex].tail.isLt.le.trans
      (GraphTables.vertices_le_tableBits_length table)
  · exact e.isLt.le.trans (GraphTables.darts_le_tableBits_length table)

def rowTime (plan : Plan) (N : Nat) : Nat :=
  plan.length * (3 * (N + 1) + 3) + 12 * N + 15

noncomputable def rowInTime (headerPlan plan : Plan) (base : Tape → List Bool)
    (table : GraphTables.Table) (e : Fin table.darts) (rest : List Bool)
    (hinput : base .input = encodeWords (GraphTables.rowWords table.rows[e]) ++ rest)
    (harchive : base .archive = GraphTables.tableBits table)
    (hn : base .vertices = encodeWord table.vertices)
    (hm : base .darts = encodeWord table.darts)
    (hrow : base .rowIndex = encodeWord e.val)
    (ht : base .tail = []) (hh : base .head = []) (hr : base .reverseIndex = [])
    (hscratch : base .scratch = []) (ambient : Ambient) :
    StateTransition.EvalsToInTime (TM2.step (program headerPlan plan))
      ⟨some .startTail, ((ambient, ()), none), base⟩
      (some ⟨some .guard, ((rowRelation table e, ()), none),
        rowResultTapes plan base table e rest⟩)
      (rowTime plan (GraphTables.tableBits table).length) := by
  let parsed := endpointTapes base table.rows[e].tail.val table.rows[e].reverseIndex.val
    (rowRest table e rest)
  let ready := preparedTapes base table e rest
  let read := Function.update ready Tape.input rest
  let output := emittedTapes plan base table e rest
  let run₁ := endpointsInTime headerPlan plan base table.rows[e].tail.val
    table.rows[e].reverseIndex.val (rowRest table e rest)
    (by simpa [GraphTables.rowWords, encodeWords, List.append_assoc, rowRest] using hinput) ambient
  have parsed_archive : parsed .archive = GenericGraphTables.tableBits (genericTable table) := by
    simpa [parsed, endpointTapes, Hastad.SourceMachine.fieldTapes] using harchive
  have parsed_reverse : parsed .reverseIndex =
      encodeWord (Lookup.headIndex (genericTable table) e).val := by
    simp [parsed, endpointTapes, Hastad.SourceMachine.fieldTapes, hr]
  have parsed_head : parsed .head = [] := by
    simp [parsed, endpointTapes, Hastad.SourceMachine.fieldTapes, hh]
  have parsed_scratch : parsed .scratch = [] := by
    simp [parsed, endpointTapes, Hastad.SourceMachine.fieldTapes, hscratch]
  let run₂ := headPhaseInTime headerPlan plan parsed (genericTable table) e
    parsed_archive parsed_reverse parsed_head parsed_scratch ambient
  let run₃ := relationInTime headerPlan plan ready table.rows[e].relation rest
    (prepared_input base table e rest) ambient
  have read_operands : ∀ i, read (source i) = encodeWord (rowOperands table e i) :=
    prepared_operands base table e rest hn hm hrow ht
  have read_scratch : read .scratch = [] := by
    simp only [read, Function.update_of_ne (show Tape.scratch ≠ Tape.input by decide)]
    exact (prepared_frame base table e rest .scratch (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide)).trans hscratch
  have read_acc : read .accumulator = base .accumulator := by
    simp only [read, Function.update_of_ne (show Tape.accumulator ≠ Tape.input by decide)]
    exact prepared_frame base table e rest .accumulator (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide)
  have run₄ : StateTransition.EvalsToInTime (TM2.step (program headerPlan plan))
      ⟨some (.row (Emitter.labelAt plan.length 36864 0 .entry)),
        ((rowRelation table e, ()), none), read⟩
      (some ⟨some .clearTail, ((rowRelation table e, ()), none), output⟩)
      (plan.length * (3 * ((GraphTables.tableBits table).length + 1) + 3) + 1) := by
    simpa only [read_acc, output, emittedTapes, read, ready] using
      emitInTime headerPlan plan read (rowOperands table e) read_operands read_scratch
        (rowRelation table e) (GraphTables.tableBits table).length (rowOperands_bounded table e)
  have output_tail : output .tail = encodeWord table.rows[e].tail.val := by
    simp [output, emittedTapes, prepared_tail, ht]
  have output_head : output .head = encodeWord table.rows[table.rows[e].reverseIndex].tail.val := by
    simp [output, emittedTapes, prepared_head]
  have output_reverse : output .reverseIndex = encodeWord table.rows[e].reverseIndex.val := by
    simp [output, emittedTapes, prepared_reverse, hr]
  have output_row : output .rowIndex = encodeWord e.val := by
    simp only [output, emittedTapes,
      Function.update_of_ne (show Tape.rowIndex ≠ Tape.accumulator by decide),
      Function.update_of_ne (show Tape.rowIndex ≠ Tape.input by decide)]
    exact (prepared_frame base table e rest .rowIndex (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide)).trans hrow
  let run₅ := finishInTime headerPlan plan output table.rows[e].tail.val
    table.rows[table.rows[e].reverseIndex].tail.val table.rows[e].reverseIndex.val e.val
    output_tail output_head output_reverse output_row (rowRelation table e)
  let r₁₂ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ run₁ run₂
  let r₁₂₃ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ r₁₂ run₃
  let r₁₂₃₄ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ r₁₂₃ run₄
  let run := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ r₁₂₃₄ run₅
  refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
  have hb := run.steps_le_m
  have htbound := rowOperands_bounded table e 2
  have hhbound := rowOperands_bounded table e 3
  have hrbound := table.rows[e].reverseIndex.isLt.le.trans (GraphTables.darts_le_tableBits_length table)
  change table.rows[e].tail.val ≤ _ at htbound
  change table.rows[table.rows[e].reverseIndex].tail.val ≤ _ at hhbound
  simp only [Lookup.headTimePolynomial, Polynomial.eval_add, Polynomial.eval_mul,
    Polynomial.eval_C, Polynomial.eval_X, genericTable_tableBits] at hb
  unfold rowTime
  omega

end

section

open PCP PCP.AlphabetTable FinalCNFTableAdapter

def remainingEvents (table : GraphTables.Table) (r : Nat) : List (Fin table.darts) :=
  (List.finRange table.darts).drop r

def processedEvents (table : GraphTables.Table) (r : Nat) : List (Fin table.darts) :=
  (List.finRange table.darts).take r

def inputStream (table : GraphTables.Table) (events : List (Fin table.darts)) : List Bool :=
  events.flatMap (fun e => encodeWords (GraphTables.rowWords table.rows[e]))

def outputStream (plan : Plan) (table : GraphTables.Table)
    (events : List (Fin table.darts)) : List Bool :=
  events.flatMap (fun e => plan.flatMap (Emitter.commandBits (rowOperands table e)
    (rowRelation table e)))

@[simp] theorem remainingEvents_zero (table : GraphTables.Table) :
    remainingEvents table 0 = List.finRange table.darts := by
  simp [remainingEvents]

@[simp] theorem remainingEvents_length (table : GraphTables.Table) (r : Nat) :
    (remainingEvents table r).length = table.darts - r := by
  simp [remainingEvents]

@[simp] theorem remainingEvents_done (table : GraphTables.Table) :
    remainingEvents table table.darts = [] := by
  simp [remainingEvents]

theorem remainingEvents_cons (table : GraphTables.Table) (r : Nat) (h : r < table.darts) :
    remainingEvents table r = ⟨r, h⟩ :: remainingEvents table (r + 1) := by
  unfold remainingEvents
  rw [List.drop_eq_getElem_cons (l := List.finRange table.darts) (i := r)
    (by simpa using h)]
  simp

@[simp] theorem processedEvents_zero (table : GraphTables.Table) :
    processedEvents table 0 = [] := by simp [processedEvents]

@[simp] theorem processedEvents_done (table : GraphTables.Table) :
    processedEvents table table.darts = List.finRange table.darts := by
  simp [processedEvents]

theorem processedEvents_succ (table : GraphTables.Table) (r : Nat) (h : r < table.darts) :
    processedEvents table (r + 1) = processedEvents table r ++ [⟨r, h⟩] := by
  unfold processedEvents
  rw [List.take_succ_eq_append_getElem (l := List.finRange table.darts) (i := r)
    (by simpa using h)]
  simp

theorem processed_append_remaining (table : GraphTables.Table) (r : Nat) :
    processedEvents table r ++ remainingEvents table r = List.finRange table.darts := by
  exact List.take_append_drop r (List.finRange table.darts)

@[simp] theorem inputStream_nil (table : GraphTables.Table) : inputStream table [] = [] := rfl

@[simp] theorem inputStream_cons (table : GraphTables.Table) (e : Fin table.darts)
    (events : List (Fin table.darts)) :
    inputStream table (e :: events) =
      encodeWords (GraphTables.rowWords table.rows[e]) ++ inputStream table events := rfl

@[simp] theorem inputStream_append (table : GraphTables.Table)
    (first rest : List (Fin table.darts)) :
    inputStream table (first ++ rest) = inputStream table first ++ inputStream table rest := by
  simp only [inputStream, List.flatMap_append]

@[simp] theorem outputStream_nil (plan : Plan) (table : GraphTables.Table) :
    outputStream plan table [] = [] := rfl

@[simp] theorem outputStream_cons (plan : Plan) (table : GraphTables.Table)
    (e : Fin table.darts) (events : List (Fin table.darts)) :
    outputStream plan table (e :: events) =
      plan.flatMap (Emitter.commandBits (rowOperands table e) (rowRelation table e)) ++
        outputStream plan table events := rfl

@[simp] theorem outputStream_append (plan : Plan) (table : GraphTables.Table)
    (first rest : List (Fin table.darts)) :
    outputStream plan table (first ++ rest) =
      outputStream plan table first ++ outputStream plan table rest := by
  simp only [outputStream, List.flatMap_append]

theorem inputStream_remaining_cons (table : GraphTables.Table) (r : Nat)
    (h : r < table.darts) :
    inputStream table (remainingEvents table r) =
      encodeWords (GraphTables.rowWords table.rows[(⟨r, h⟩ : Fin table.darts)]) ++
        inputStream table (remainingEvents table (r + 1)) := by
  rw [remainingEvents_cons table r h, inputStream_cons]

theorem outputStream_remaining_cons (plan : Plan) (table : GraphTables.Table) (r : Nat)
    (h : r < table.darts) :
    outputStream plan table (remainingEvents table r) =
      plan.flatMap (Emitter.commandBits (rowOperands table ⟨r, h⟩)
        (rowRelation table ⟨r, h⟩)) ++
          outputStream plan table (remainingEvents table (r + 1)) := by
  rw [remainingEvents_cons table r h, outputStream_cons]

theorem outputStream_processed_succ (plan : Plan) (table : GraphTables.Table) (r : Nat)
    (h : r < table.darts) :
    outputStream plan table (processedEvents table (r + 1)) =
      outputStream plan table (processedEvents table r) ++
        plan.flatMap (Emitter.commandBits (rowOperands table ⟨r, h⟩)
          (rowRelation table ⟨r, h⟩)) := by
  rw [processedEvents_succ table r h, outputStream_append]
  simp

theorem inputStream_split (table : GraphTables.Table) (r : Nat) :
    inputStream table (List.finRange table.darts) =
      inputStream table (processedEvents table r) ++
        inputStream table (remainingEvents table r) := by
  rw [← inputStream_append, processed_append_remaining]

theorem outputStream_split (plan : Plan) (table : GraphTables.Table) (r : Nat) :
    outputStream plan table (List.finRange table.darts) =
      outputStream plan table (processedEvents table r) ++
        outputStream plan table (remainingEvents table r) := by
  rw [← outputStream_append, processed_append_remaining]

private theorem encodeWords_flatMap_rows {α : Type} (rows : List α) (words : α → List Nat) :
    encodeWords (rows.flatMap words) = rows.flatMap (fun row => encodeWords (words row)) := by
  induction rows with
  | nil => rfl
  | cons row rows ih => simp only [List.flatMap_cons, encodeWords_append, ih]

theorem rowList_eq_finRange_map (table : GraphTables.Table) :
    GraphTables.rowList table = (List.finRange table.darts).map (fun e => table.rows[e]) := by
  rw [← List.ofFn_eq_map, ← Vector.toList_ofFn]
  change table.rows.toList = (Vector.ofFn (fun i => table.rows[i.val])).toList
  rw [Vector.ofFn_getElem]

theorem inputStream_all (table : GraphTables.Table) :
    inputStream table (List.finRange table.darts) = tableRowsBits (genericTable table) := by
  rw [tableRowsBits, genericTable_rowList]
  erw [List.flatMap_map]
  change inputStream table (List.finRange table.darts) =
    encodeWords ((GraphTables.rowList table).flatMap GraphTables.rowWords)
  rw [rowList_eq_finRange_map, List.flatMap_map, encodeWords_flatMap_rows]
  rfl

theorem inputStream_remaining_zero (table : GraphTables.Table) :
    inputStream table (remainingEvents table 0) = tableRowsBits (genericTable table) := by
  rw [remainingEvents_zero, inputStream_all]

theorem outputStream_accumulator_succ (plan : Plan) (table : GraphTables.Table)
    (r : Nat) (h : r < table.darts) (header : List Bool) :
    (plan.flatMap (Emitter.commandBits (rowOperands table ⟨r, h⟩)
      (rowRelation table ⟨r, h⟩))).reverse ++
        (header ++ outputStream plan table (processedEvents table r)).reverse =
      (header ++ outputStream plan table (processedEvents table (r + 1))).reverse := by
  rw [outputStream_processed_succ plan table r h]
  simp only [List.reverse_append, List.append_assoc]

end

section

open Turing PCP PCP.AlphabetTable

structure LoopInvariant (table : GraphTables.Table) (r : Nat) (base : Tape → List Bool) : Prop where
  input : base .input = inputStream table (remainingEvents table r)
  archive : base .archive = GraphTables.tableBits table
  vertices : base .vertices = encodeWord table.vertices
  darts : base .darts = encodeWord table.darts
  index : base .rowIndex = encodeWord r
  tail : base .tail = []
  head : base .head = []
  reverse : base .reverseIndex = []
  scratch : base .scratch = []

structure LoopRun (headerPlan plan : Plan) (table : GraphTables.Table) (r remaining : Nat)
    (base : Tape → List Bool) (ambient : Ambient) where
  finalAmbient : Ambient
  finalTapes : Tape → List Bool
  execution : StateTransition.EvalsToInTime (TM2.step (program headerPlan plan))
    ⟨some .guard, ((ambient, ()), none), base⟩
    (some ⟨some .reverseOutput, ((finalAmbient, ()), none), finalTapes⟩)
    (remaining * (rowTime plan (GraphTables.tableBits table).length + 1) + 1)
  accumulator : finalTapes .accumulator =
    (outputStream plan table (remainingEvents table r)).reverse ++ base .accumulator
  output : finalTapes .output = base .output

theorem rowInvariant_succ (plan : Plan) (table : GraphTables.Table) (r : Nat)
    (hr : r < table.darts) (base : Tape → List Bool) (invariant : LoopInvariant table r base) :
    LoopInvariant table (r + 1)
      (rowResultTapes plan base table ⟨r, hr⟩
        (inputStream table (remainingEvents table (r + 1)))) := by
  constructor
  · exact rowResult_input _ _ _ _ _
  · exact (rowResult_frame _ _ _ _ _ .archive (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide) (by decide) (by decide)).trans invariant.archive
  · exact (rowResult_frame _ _ _ _ _ .vertices (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide) (by decide) (by decide)).trans invariant.vertices
  · exact (rowResult_frame _ _ _ _ _ .darts (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide) (by decide) (by decide)).trans invariant.darts
  · exact rowResult_index _ _ _ _ _
  · exact rowResult_tail _ _ _ _ _
  · exact rowResult_head _ _ _ _ _
  · exact rowResult_reverse _ _ _ _ _
  · exact (rowResult_frame _ _ _ _ _ .scratch (by decide) (by decide) (by decide)
      (by decide) (by decide) (by decide) (by decide) (by decide)).trans invariant.scratch

theorem rowWords_nonempty (table : GraphTables.Table) (e : Fin table.darts) :
    encodeWords (GraphTables.rowWords table.rows[e]) ≠ [] := by
  simp [GraphTables.rowWords, encodeWords, encodeWord]

noncomputable def loopInTime (headerPlan plan : Plan) (table : GraphTables.Table)
    (remaining : Nat) :
    ∀ (r : Nat) (_hcount : r + remaining = table.darts) (base : Tape → List Bool)
      (ambient : Ambient), LoopInvariant table r base →
        LoopRun headerPlan plan table r remaining base ambient := by
  induction remaining with
  | zero =>
      intro r hcount base ambient invariant
      have hr : r = table.darts := by omega
      have hinput : base .input = [] := by
        simpa only [hr, remainingEvents_done, inputStream_nil] using invariant.input
      refine {
        finalAmbient := ambient
        finalTapes := base
        execution := ?_
        accumulator := ?_
        output := rfl }
      · simpa only [Nat.zero_mul, Nat.zero_add] using
          guardEndInTime headerPlan plan base ambient hinput
      · simp only [hr, remainingEvents_done, outputStream_nil, List.reverse_nil, List.nil_append]
  | succ remaining ih =>
      intro r hcount base ambient invariant
      have hr : r < table.darts := by omega
      let e : Fin table.darts := ⟨r, hr⟩
      let rest := inputStream table (remainingEvents table (r + 1))
      let next := rowResultTapes plan base table e rest
      have hinput : base .input = encodeWords (GraphTables.rowWords table.rows[e]) ++ rest := by
        rw [invariant.input, inputStream_remaining_cons table r hr]
      have hnonempty : base .input ≠ [] := by
        rw [hinput]
        exact List.append_ne_nil_of_left_ne_nil (rowWords_nonempty table e) rest
      let guardRun := guardRowInTime headerPlan plan base ambient hnonempty
      let rowRun := rowInTime headerPlan plan base table e rest hinput invariant.archive
        invariant.vertices invariant.darts invariant.index invariant.tail invariant.head
        invariant.reverse invariant.scratch ambient
      let first := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ guardRun rowRun
      let later := ih (r + 1) (by omega) next (rowRelation table e)
        (rowInvariant_succ plan table r hr base invariant)
      let run := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ first later.execution
      refine {
        finalAmbient := later.finalAmbient
        finalTapes := later.finalTapes
        execution := { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
        accumulator := ?_
        output := ?_ }
      · have hb := run.steps_le_m
        rw [Nat.succ_mul]
        omega
      · rw [later.accumulator, outputStream_remaining_cons plan table r hr]
        simp only [next, rowResult_accumulator, List.reverse_append, List.append_assoc]
        rfl
      · rw [later.output]
        exact rowResult_frame _ _ _ _ _ .output (by decide) (by decide) (by decide)
          (by decide) (by decide) (by decide) (by decide) (by decide)

end

section

open Turing PCP PCP.AlphabetTable FinalCNFTableAdapter

def emittedBytes (plan : Plan) (table : GraphTables.Table) : List Bool :=
  encodeWords [6 * table.vertices + 36864 * table.darts, 40960 * table.darts] ++
    outputStream plan table (List.finRange table.darts)

noncomputable def rawBudget (plan : Plan) (table : GraphTables.Table) : Nat :=
  headerTimePolynomial.eval (GraphTables.tableBits table).length +
    table.darts * (rowTime plan (GraphTables.tableBits table).length + 1) + 1 +
      (emittedBytes plan table).length + 1

structure RawRun (plan : Plan) (table : GraphTables.Table) where
  finalAmbient : Ambient
  finalTapes : Tape → List Bool
  execution : StateTransition.EvalsToInTime (machine headerPlan plan).step
    (initList (machine headerPlan plan) (GraphTables.tableBits table))
    (some ⟨none, ((finalAmbient, ()), none), finalTapes⟩) (rawBudget plan table)
  output : finalTapes .output = emittedBytes plan table

theorem header_loopInvariant (_plan : Plan) (table : GraphTables.Table) :
    LoopInvariant table 0 (headerResultTapes table.vertices table.darts
      (tableRowsBits (genericTable table))) := by
  constructor
  · rw [headerResultTapes_input, inputStream_remaining_zero]
  · rw [headerResultTapes_archive]
    exact (tableBits_header_rows (genericTable table)).symm.trans (genericTable_tableBits table)
  · rfl
  · rfl
  · exact headerResultTapes_rowIndex _ _ _
  · rfl
  · rfl
  · rfl
  · rfl

noncomputable def rawRun (plan : Plan) (table : GraphTables.Table) : RawRun plan table := by
  let base := headerResultTapes table.vertices table.darts (tableRowsBits (genericTable table))
  let ambient : Ambient := ((), fun _ => false)
  have headerRun : StateTransition.EvalsToInTime (machine headerPlan plan).step
      (initList (machine headerPlan plan) (GraphTables.tableBits table))
      (some ⟨some .guard, ((ambient, ()), none), base⟩)
      (headerTimePolynomial.eval (GraphTables.tableBits table).length) := by
    simpa only [genericTable_tableBits, genericTable_vertices, genericTable_darts, base, ambient]
      using initializedTableHeaderInTime plan (genericTable table)
  let loop := loopInTime headerPlan plan table table.darts 0 (by omega)
    base ambient (header_loopInvariant plan table)
  have acc : loop.finalTapes .accumulator = (emittedBytes plan table).reverse := by
    rw [loop.accumulator]
    simp only [remainingEvents_zero, base, headerResultTapes_accumulator, emittedBytes,
      List.reverse_append]
  have out : loop.finalTapes .output = [] := by
    rw [loop.output]
    rfl
  let finalTapes := Reduction.MachineTransfer.tapesAt Tape.accumulator Tape.output
    loop.finalTapes [] (emittedBytes plan table)
  have finish : StateTransition.EvalsToInTime (machine headerPlan plan).step
      ⟨some .reverseOutput, ((loop.finalAmbient, ()), none), loop.finalTapes⟩
      (some ⟨none, ((loop.finalAmbient, ()), none), finalTapes⟩)
      ((emittedBytes plan table).length + 1) := by
    have run := Reduction.MachineTransfer.transferAtInTime Tape.accumulator Tape.output
      (by decide) id false .reverseOutput none (program headerPlan plan) rfl
      loop.finalTapes (loop.finalAmbient, ()) none
    simpa only [acc, out, List.reverse_reverse, List.length_reverse, List.map_id,
      List.append_nil, finalTapes, machine, FinTM2.step] using! run
  let first := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ headerRun loop.execution
  let run := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ first finish
  exact {
    finalAmbient := loop.finalAmbient
    finalTapes := finalTapes
    execution := {
      toEvalsTo := run.toEvalsTo
      steps_le_m := by
        have hb := run.steps_le_m
        unfold rawBudget
        omega }
    output := by simp [finalTapes, Reduction.MachineTransfer.tapesAt] }

end

section

open PCP PCP.AlphabetTable

def formulaHeader (table : GraphTables.Table) : List Bool :=
  encodeWords [6 * table.vertices + 36864 * table.darts, 40960 * table.darts]

theorem formulaHeader_eq (table : GraphTables.Table) :
    formulaHeader table = encodeWords [(FinalTableFormula.output table).variables,
      (FinalTableFormula.output table).clauses.length] := by
  simp only [formulaHeader, FinalTableFormula.variable_count, FinalTableFormula.clause_count,
    Nat.mul_comm]

theorem headerPlan_eq_formulaHeader (table : GraphTables.Table) (tail head row : Nat)
    (ambient : Ambient) :
    headerPlan.flatMap (Emitter.commandBits
      (values table.vertices table.darts tail head row) ambient) = formulaHeader table :=
  headerPlan_bits table.vertices table.darts tail head row ambient

theorem outputStream_eq_clauseBits (table : GraphTables.Table) :
    outputStream rowPlan table (List.finRange table.darts) =
      encodeWords ((FinalTableFormula.output table).clauses.flatMap Complexity.clauseWords) := by
  calc
    _ = (List.finRange table.darts).flatMap (fun e =>
          encodeWords ((VerifierToCNF.eventBlock (FinalCNFPattern.tableVerifier table)
            (by decide) e).flatMap Complexity.clauseWords)) := by
      apply List.flatMap_congr
      intro e he
      exact rowPlan_bits table e
    _ = encodeWords ((List.finRange table.darts).flatMap (fun e =>
          (VerifierToCNF.eventBlock (FinalCNFPattern.tableVerifier table)
            (by decide) e).flatMap Complexity.clauseWords)) :=
      (encodeWords_flatMap _ _).symm
    _ = _ := by
      congr 1
      rw [← List.flatMap_assoc]
      rfl

theorem header_append_outputStream (table : GraphTables.Table) :
    formulaHeader table ++ outputStream rowPlan table (List.finRange table.darts) =
      formulaBits (FinalTableFormula.output table) := by
  rw [formulaHeader_eq, outputStream_eq_clauseBits]
  exact (encodeWords_append _ _).symm

theorem emitted_output_eq (table : GraphTables.Table) (tail head row : Nat)
    (ambient : Ambient) :
    headerPlan.flatMap (Emitter.commandBits
      (values table.vertices table.darts tail head row) ambient) ++
      outputStream rowPlan table (List.finRange table.darts) =
        formulaBits (FinalTableFormula.output table) := by
  rw [headerPlan_eq_formulaHeader]
  exact header_append_outputStream table

theorem reversed_accumulator_output (table : GraphTables.Table) :
    (formulaHeader table ++ outputStream rowPlan table (List.finRange table.darts)).reverse.reverse =
      formulaBits (FinalTableFormula.output table) := by
  rw [List.reverse_reverse, header_append_outputStream]

theorem accumulator_length_bound (table : GraphTables.Table) :
    (formulaHeader table ++ outputStream rowPlan table (List.finRange table.darts)).reverse.length ≤
      FinalTableFormula.sizePolynomial.eval (GraphTables.tableBits table).length := by
  rw [List.length_reverse, header_append_outputStream]
  exact FinalTableFormula.formulaBits_length_le_polynomial table

end

section

open PCP

noncomputable def rowTimePolynomial : Polynomial Nat :=
  Polynomial.C 860160 * (Polynomial.C 3 * (Polynomial.X + Polynomial.C 1) + Polynomial.C 3) +
    Polynomial.C 12 * Polynomial.X + Polynomial.C 15

theorem rowTimePolynomial_eval (N : Nat) :
    rowTimePolynomial.eval N = rowTime rowPlan N := by
  simp only [rowTimePolynomial, Polynomial.eval_add, Polynomial.eval_mul,
    Polynomial.eval_C, Polynomial.eval_X, rowTime, rowPlan_length]

theorem rowTime_expanded (N : Nat) : rowTime rowPlan N = 2580492 * N + 5160975 := by
  rw [rowTime, rowPlan_length]
  omega

noncomputable def phaseTimePolynomial : Polynomial Nat :=
  headerTimePolynomial +
    (Polynomial.X * (rowTimePolynomial + Polynomial.C 1) + Polynomial.C 1) +
    (FinalTableFormula.sizePolynomial + Polynomial.C 1)

theorem phaseTimePolynomial_eval (N : Nat) :
    phaseTimePolynomial.eval N =
      headerTimePolynomial.eval N + (N * (rowTime rowPlan N + 1) + 1) +
        (FinalTableFormula.sizePolynomial.eval N + 1) := by
  simp only [phaseTimePolynomial, Polynomial.eval_add, Polynomial.eval_mul,
    Polynomial.eval_C, Polynomial.eval_X, rowTimePolynomial_eval]

theorem phaseTimePolynomial_eval_expanded (N : Nat) :
    phaseTimePolynomial.eval N = 4532428812 * N ^ 2 + 5484585 * N + 56 := by
  rw [phaseTimePolynomial_eval, headerTimePolynomial_eval, rowTime_expanded,
    FinalTableFormula.sizePolynomial_eval]
  ring

theorem phaseTime_le {N rows outputLength : Nat} (rowBound : rows ≤ N)
    (outputBound : outputLength ≤ FinalTableFormula.sizePolynomial.eval N) :
    headerTimePolynomial.eval N + (rows * (rowTime rowPlan N + 1) + 1) +
      (outputLength + 1) ≤ phaseTimePolynomial.eval N := by
  have hrows := Nat.mul_le_mul_right (rowTime rowPlan N + 1) rowBound
  rw [phaseTimePolynomial_eval]
  omega

theorem table_phaseTime_le (table : GraphTables.Table) :
    headerTimePolynomial.eval (GraphTables.tableBits table).length +
      (table.darts * (rowTime rowPlan (GraphTables.tableBits table).length + 1) + 1) +
      ((formulaBits (FinalTableFormula.output table)).length + 1) ≤
        phaseTimePolynomial.eval (GraphTables.tableBits table).length :=
  phaseTime_le (GraphTables.darts_le_tableBits_length table)
    (FinalTableFormula.formulaBits_length_le_polynomial table)

noncomputable def finalTimePolynomial (C : Nat) : Polynomial Nat :=
  phaseTimePolynomial + Polynomial.C 12 *
    (Polynomial.X + phaseTimePolynomial * Polynomial.C C + Polynomial.C 1) + Polynomial.C 1

theorem finalTimePolynomial_eval (C N : Nat) :
    (finalTimePolynomial C).eval N = phaseTimePolynomial.eval N +
      12 * (N + phaseTimePolynomial.eval N * C + 1) + 1 := by
  simp only [finalTimePolynomial, Polynomial.eval_add, Polynomial.eval_mul,
    Polynomial.eval_C, Polynomial.eval_X]

theorem finalTime_le (C N workLength : Nat)
    (workBound : workLength ≤ N + phaseTimePolynomial.eval N * C) :
    phaseTimePolynomial.eval N + 12 * (workLength + 1) + 1 ≤
      (finalTimePolynomial C).eval N := by
  have h := Nat.mul_le_mul_left 12 (Nat.add_le_add_right workBound 1)
  rw [finalTimePolynomial_eval]
  omega

end

open Turing PCP

theorem emittedBytes_eq_formulaBits (table : GraphTables.Table) :
    emittedBytes rowPlan table = formulaBits (FinalTableFormula.output table) :=
  header_append_outputStream table

theorem rawBudget_le_phaseTime (table : GraphTables.Table) :
    rawBudget rowPlan table ≤ phaseTimePolynomial.eval (GraphTables.tableBits table).length := by
  unfold rawBudget
  rw [emittedBytes_eq_formulaBits]
  simpa only [Nat.add_assoc] using table_phaseTime_le table

noncomputable def computableInPolyTime :
    TM2ComputableInPolyTime GraphTables.tableBits formulaBits FinalTableFormula.output where
  tm := FinalCNFCleanup.completedMachine headerPlan rowPlan
  inputAlphabet := Equiv.refl Bool
  outputAlphabet := Equiv.refl Bool
  time := finalTimePolynomial (Runtime.programPushBound (machine headerPlan rowPlan))
  outputsFun table := by
    let tm := FinalCNFCleanup.completedMachine headerPlan rowPlan
    let input : List (tm.Γ tm.k₀) := GraphTables.tableBits table
    let output : List (tm.Γ tm.k₁) := formulaBits (FinalTableFormula.output table)
    change TM2OutputsInTime tm (input.map id) (some (output.map id))
      ((finalTimePolynomial (Runtime.programPushBound (machine headerPlan rowPlan))).eval
        (GraphTables.tableBits table).length)
    rw [List.map_id, List.map_id]
    rw [finalTimePolynomial_eval]
    let raw := rawRun rowPlan table
    let bounded : StateTransition.EvalsToInTime (machine headerPlan rowPlan).step
        (initList (machine headerPlan rowPlan) (GraphTables.tableBits table))
        (some ⟨none, ((raw.finalAmbient, ()), none), raw.finalTapes⟩)
        (phaseTimePolynomial.eval (GraphTables.tableBits table).length) := {
      toEvalsTo := raw.execution.toEvalsTo
      steps_le_m := raw.execution.steps_le_m.trans (rawBudget_le_phaseTime table) }
    have correct : raw.finalTapes .output = formulaBits (FinalTableFormula.output table) :=
      raw.output.trans (emittedBytes_eq_formulaBits table)
    have run := FinalCNFCleanup.outputsInTime headerPlan rowPlan
      (GraphTables.tableBits table) (formulaBits (FinalTableFormula.output table))
      ((raw.finalAmbient, ()), none) raw.finalTapes
      (phaseTimePolynomial.eval (GraphTables.tableBits table).length) bounded correct
    exact run

end BinPackingGames.Foundations.Complexity.FinalCNFMachine.Program

namespace BinPackingGames.Foundations.Complexity.MachineTableIteration

open Turing PCP RoundTables GraphIterationBounds

def finalTable (H : BaseTable) (input : Input) : GraphTables.Table :=
  TableIteration.runTables H (count input) input.val

noncomputable def counterCertificate : TM2ComputableInPolyTime inputBits countedBits (id : Input → Input) where
  toTM2ComputableAux := GraphCounterPrefix.computableInPolyTime.toTM2ComputableAux
  time := GraphCounterPrefix.computableInPolyTime.time
  outputsFun input := GraphCounterPrefix.computableInPolyTime.outputsFun input.val

variable (H : BaseTable)
  (body : TM2ComputableInPolyTime GraphTables.tableBits GraphTables.tableBits (build H))

noncomputable def countedCertificate :
    TM2ComputableInPolyTime countedBits GraphTables.tableBits (finalTable H) where
  tm := MachineRepeat.machine body.tm body.inputAlphabet body.outputAlphabet
  inputAlphabet := body.inputAlphabet
  outputAlphabet := body.inputAlphabet
  time := runtimePolynomial body.time
  outputsFun input := by
    let budgets := fun i => body.time.eval (words H input i).length
    have runs (i : Nat) (_hi : i < count input) :
        TM2OutputsInTime body.tm ((words H input i).map body.inputAlphabet.symm)
          (some ((words H input (i + 1)).map body.outputAlphabet.symm)) (budgets i) := by
      exact body.outputsFun (TableIteration.runTables H i input.val)
    let run := MachineRepeat.executeSequence body.tm body.inputAlphabet body.outputAlphabet
      (count input) (words H input) budgets runs
    have start : encodeWord (count input) ++ words H input 0 = countedBits input := rfl
    have finish : words H input (count input) = GraphTables.tableBits (finalTable H input) := rfl
    rw [start, finish] at run
    refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
    let N := (countedBits input).length
    let L := lengthPolynomial.eval N
    let B := body.time.eval L
    have hl (i : Nat) (hi : i ≤ count input) : (words H input i).length ≤ L :=
      intermediate_bits H input i hi
    have hb (i : Nat) (hi : i < count input) : budgets i ≤ B :=
      MachineComposition.natPolynomial_eval_mono body.time (hl i hi.le)
    have hloop := MachineRepeat.loopBudget_le (count input) (words H input) budgets B L hb hl
    have hc : count input ≤ N + 1 := count_le input
    rw [runtimePolynomial_eval]
    calc
      run.steps ≤ count input + 1 + MachineRepeat.loopBudget (count input) (words H input) budgets :=
        run.steps_le_m
      _ ≤ count input + 1 + (count input * (B + 2 * L + 3) + 2 * L + 3) :=
        Nat.add_le_add_left hloop _
      _ = count input * (B + 2 * L + 4) + 2 * L + 4 := by ring
      _ ≤ (N + 1) * (B + 2 * L + 4) + 2 * L + 4 :=
        Nat.add_le_add_right (Nat.add_le_add_right (Nat.mul_le_mul_right _ hc) _) _

noncomputable def computableInPolyTime :
    TM2ComputableInPolyTime inputBits GraphTables.tableBits (finalTable H) :=
  MachineSequential.composeBits counterCertificate (countedCertificate H body)

noncomputable def initialCertificate :
    TM2ComputableInPolyTime formulaBits inputBits initial where
  toTM2ComputableAux := MachineRawInitialTable.computableInPolyTime.toTM2ComputableAux
  time := MachineRawInitialTable.computableInPolyTime.time
  outputsFun F := MachineRawInitialTable.computableInPolyTime.outputsFun F

noncomputable def tableCertificate :
    TM2ComputableInPolyTime formulaBits GraphTables.tableBits (TableIteration.outputTable H) := by
  change TM2ComputableInPolyTime formulaBits GraphTables.tableBits
    (fun F => finalTable H (initial F))
  exact MachineSequential.composeBits (f := initial) (g := finalTable H)
    initialCertificate (computableInPolyTime H body)

noncomputable def gapMapCertificate :
    TM2ComputableInPolyTime formulaBits formulaBits (TableIteration.gapMap H) :=
  MachineSequential.composeBits (f := TableIteration.outputTable H) (g := FinalTableFormula.output)
    (tableCertificate H body)
    FinalCNFMachine.Program.computableInPolyTime

end BinPackingGames.Foundations.Complexity.MachineTableIteration

namespace BinPackingGames.Foundations.Complexity.TableIterationFiniteAlphabet

open PCP MachineFiniteAlphabet

theorem initial : FiniteAlphabet MachineRawInitialTable.computableInPolyTime.tm := by
  intro k
  change Finite Bool
  infer_instance

theorem finalCNF : FiniteAlphabet FinalCNFMachine.Program.computableInPolyTime.tm := by
  intro k
  change Finite Bool
  infer_instance

theorem counter : FiniteAlphabet MachineTableIteration.counterCertificate.tm := by
  intro k
  change Finite Bool
  infer_instance

variable (H : RoundTables.BaseTable)
  (body : Turing.TM2ComputableInPolyTime GraphTables.tableBits GraphTables.tableBits
    (RoundTables.build H))
  (finiteBody : FiniteAlphabet body.tm)

include finiteBody

theorem counted : FiniteAlphabet (MachineTableIteration.countedCertificate H body).tm :=
  repeat_machine body.tm body.inputAlphabet body.outputAlphabet finiteBody

theorem iteration : FiniteAlphabet (MachineTableIteration.computableInPolyTime H body).tm :=
  composeBits MachineTableIteration.counterCertificate
    (MachineTableIteration.countedCertificate H body) counter (counted H body finiteBody)

theorem table : FiniteAlphabet (MachineTableIteration.tableCertificate H body).tm :=
  composeBits MachineTableIteration.initialCertificate
    (MachineTableIteration.computableInPolyTime H body) initial (iteration H body finiteBody)

theorem gapMap : FiniteAlphabet (MachineTableIteration.gapMapCertificate H body).tm :=
  composeBits (MachineTableIteration.tableCertificate H body)
    FinalCNFMachine.Program.computableInPolyTime (table H body finiteBody) finalCNF

end BinPackingGames.Foundations.Complexity.TableIterationFiniteAlphabet

end OAI