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Project-declaredLean 4.31.0 · mathlib@fabf563a7c95

Lift Context process Round

Prover.liftContext_processRound

Plain-language statement

Lifting the prover intertwines with the process round function

Exact Lean statement

theorem liftContext_processRound
    {lens : Context.Lens OuterStmtIn OuterStmtOut InnerStmtIn InnerStmtOut
                        OuterWitIn OuterWitOut InnerWitIn InnerWitOut}
    {i : Fin n}
    {P : Prover oSpec InnerStmtIn InnerWitIn InnerStmtOut InnerWitOut pSpec}
    {resultRound : OracleComp (oSpec + [pSpec.Challenge]ₒ)
      (pSpec.Transcript i.castSucc × (P.liftContext lens).PrvState i.castSucc)} :
      (P.liftContext lens).processRound i resultRound
      = do
        let ⟨transcript, prvState, outerStmtIn, outerWitIn⟩ ← resultRound
        let ⟨newTranscript, newPrvState⟩ ← P.processRound i (do return ⟨transcript, prvState⟩)
        return ⟨newTranscript, ⟨newPrvState, outerStmtIn, outerWitIn⟩⟩

Formal artifact

Lean source

Canonical source
Full Lean sourceLean 4
theorem liftContext_processRound    {lens : Context.Lens OuterStmtIn OuterStmtOut InnerStmtIn InnerStmtOut                        OuterWitIn OuterWitOut InnerWitIn InnerWitOut}    {i : Fin n}    {P : Prover oSpec InnerStmtIn InnerWitIn InnerStmtOut InnerWitOut pSpec}    {resultRound : OracleComp (oSpec + [pSpec.Challenge]ₒ)      (pSpec.Transcript i.castSucc × (P.liftContext lens).PrvState i.castSucc)} :      (P.liftContext lens).processRound i resultRound      = do        let transcript, prvState, outerStmtIn, outerWitIn  resultRound        let newTranscript, newPrvState  P.processRound i (do return transcript, prvState)        return newTranscript, newPrvState, outerStmtIn, outerWitIn⟩⟩ := by  unfold processRound liftContext  simp only [bind_pure_comp]  congr 1; funext tr, ps, outerStmtIn', outerWitIn'  simp only [pure_bind]  split <;> simp [Functor.map_map, Function.comp, liftM_map, map_bind,    bind_assoc, pure_bind, bind_map_left, bind_pure_comp]
Project
ArkLib
License
Apache-2.0
Commit
fad5cbf80877
Source
ArkLib/OracleReduction/LiftContext/Reduction.lean:211-228

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Plain-language statement

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