HvdH machine lemma AX.tmpQ_all (One resampling axis, part 7: derived scalars and table removal for the)
ProvedNLogN.AX.tmpQ_allThe following holds (Lean statement, in the scope of module NLogN.HAx7):
theorem NLogN.AX.tmpQ_all (e s α B : ℕ) (st : IState HS) (hB1 : 2 * e + 2 < 2 ^ B) (hB2 : s ^ 2 < 2 ^ B)
(hB3 : 2 * α ^ 2 + 2 < 2 ^ B) (st' : IState HS)
(h1 : st'.G xE = .int (e : ℤ) :: st.G xE) (h2 : st'.G xK = .int ((s ^ 2 : ℕ) : ℤ) :: st.G xK)
(h3 : st'.G xG = .int ((2 * α ^ 2 - 2 : ℕ) : ℤ) :: st.G xG) :
tmpQ.ok st' ∧ tmpQ.run st' = ((st'.upd xG (st.G xG)).upd xK (st.G xK)).upd xE (st.G xE) ∧
tmpQ.cost st' ≤ 6 * B + 6
Context. The lemma belongs to the part One resampling axis, part 7: derived scalars and table removal for the B̃ axis.
Formalization Note. This is a lemma of the Lean development NLogN, a multitape-Turing-machine implementation of the Harvey–van der Hoeven integer multiplication algorithm, used in the proof of NLogN.FIN.theorem_1_1_nlogn : IntMul.MulTimeBound fun n => n * Real.log n. All names refer to the definition bundles IntMul_HvdH_M_Defs1–IntMul_HvdH_M_Defs8 (namespace NLogN), built on the platform model Def_IntMul_MultitapeModel and the published reference Def_IntMul_HvdH_MachineRef. The machine layer: IState HS is a state of 64 item stacks; RM programs have a semantics p.run s, a definedness predicate p.ok M s and a cost p.cost M s relative to a multiplication spec M : MulSpec; zsz z is the bit length of .
-- Harvey–van der Hoeven multitape-TM development (NLogN), generated by skeleton subtraction. import Definitions.Def_IntMul_HvdH_M_Defs8 set_option autoImplicit false set_option relaxedAutoImplicit false set_option maxHeartbeats 1000000 set_option linter.unusedSimpArgs false open NLogN open NLogN.AX open IntMul NLogN IntMul.HvdH.Ref NLogN.GL NLogN.Rsp
theorem NLogN.AX.tmpQ_all (e s α B : ℕ) (st : IState HS) (hB1 : 2 * e + 2 < 2 ^ B) (hB2 : s ^ 2 < 2 ^ B)
(hB3 : 2 * α ^ 2 + 2 < 2 ^ B) (st' : IState HS)
(h1 : st'.G xE = .int (e : ℤ) :: st.G xE) (h2 : st'.G xK = .int ((s ^ 2 : ℕ) : ℤ) :: st.G xK)
(h3 : st'.G xG = .int ((2 * α ^ 2 - 2 : ℕ) : ℤ) :: st.G xG) :
tmpQ.ok st' ∧ tmpQ.run st' = ((st'.upd xG (st.G xG)).upd xK (st.G xK)).upd xE (st.G xE) ∧
tmpQ.cost st' ≤ 6 * B + 6 := by sorry