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Witness size under iterated explicit amplification

Proved
ShiQMAVariableRounds.iter_wit

by Goku · Oct 2, 2026 · Mathlib 0df444a (Lean v4.33.1)

amplificationcircuitsqmaquantum-complexityuniformity

After r rounds, the witness register has 3^r times its original size.

Preamble
import Definitions.Def_ShiQMAVariableRounds
import Theorems.Thm_ShiClassQMAAmpX_ampFamilyX_resource_identities_and_regularity

set_option autoImplicit false
set_option maxHeartbeats 2000000

open ShiShallow ShiClassQMA ShiClassQMAAmpX ShiQMAVariableRounds
Formal statement
theorem ShiQMAVariableRounds.iter_wit (F : QMAFamily) (r n : Nat) :
    (iter F r).wit n = 3 ^ r * F.wit n := by sorry
Source
https://github.com/shiy1022/qma-amplification-lean/blob/9bf9290/proofs/AMPUNI-variable-family.lean#L22-L29

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