Proof — Verse 1.52

यथैकबुद्धिविषया मूर्तिराक्रियते पटे ।
मूर्त्यन्तरस्य त्रितयमेवं शब्देऽपि दृश्यते ॥ ५२ ॥

As a figure, though the object of a single cognition, is executed on the canvas by way of the triad of another figure, so it is seen in the case of the word as well.

Endorsed axioms (each cite is verbatim commentary)

Denials

Rejected readings (refuted by compiled theorems)

Lean module

/- Verse 1.52 — generated from data/contracts/1.52.json. DO NOT EDIT.
   Axiom cites are verbatim commentary quotations, validated by
   tests/test_contracts.py. -/
import VakyaVallari.Adequacy

namespace VakyaVallari.Verses.V1_52

open VakyaVallari

def sabda : Entity := ⟨"śabda", Sorta.linguisticItem⟩
def vaktr : Entity := ⟨"vaktṛ", Sorta.absolute⟩
def buddhivisaya : Entity := ⟨"buddhivisaya", Sorta.cognition⟩
def tritaya : Entity := ⟨"tritaya", Sorta.property⟩

def contract : Contract :=
  { axioms := [ Claim.predication "ekacaitanya" sabda
    , Claim.relation "utpadyate" (Node.ent tritaya) (Node.ent sabda)
    , Claim.predication "vivartate" sabda
    , Claim.predication "kriya" vaktr ]
  , denials := [ Claim.predication "natural" sabda ]
  , reported := [] }

def accepted : Reading :=
  { claims := [ Claim.predication "ekacaitanya" sabda
    , Claim.relation "utpadyate" (Node.ent tritaya) (Node.ent sabda) ] }

theorem accepted_adequate : contract.Adequate accepted := by decide

namespace Counterexamples

/- "The word is either unified in the speaker's mind or sequential in articulation, but not both simultaneously."
   Why rejected: The verse's central teaching is that the word is permanently dual-natured: unified (ekacaitanya) in cognition yet realized through the three-stage procedure (tritaya utpadyate). The commentary emphasizes 'the word's permanent oscillation between unity and sequence', demonstrating they coexist. Denying this simultaneity violates the vivartate axiom. -/
def sabda_unity_only : Entity := ⟨"śabda", Sorta.property⟩
def mutual_exclusivity : Reading :=
  { claims := [ Claim.relation "utpadyate" (Node.ent tritaya) (Node.ent sabda_unity_only) ] }
theorem mutual_exclusivity_inadequate : ¬ contract.Adequate mutual_exclusivity := by decide
#guard contract.licenses mutual_exclusivity = false
theorem mutual_exclusivity_sort_error : sabda_unity_only ≠ sabda := by decide

/- "The word is produced spontaneously like natural processes (fire, reflection, eggs), without the speaker's deliberate crafting."
   Why rejected: The verse's choice of painting (not natural phenomena) emphasizes deliberate craft and speaker agency. The commentary explicitly contrasts: 'Fire, reflection and egg are natural processes, but painting is deliberate craft, and it models the *speaker's* situation'. Denying the speaker's intentional kriya (agency) contradicts both the kriya axiom and the denial that sabda is natural. -/
def natural_process : Reading :=
  { claims := [ Claim.predication "natural" sabda ] }
theorem natural_process_inadequate : ¬ contract.Adequate natural_process := by decide
#guard contract.contradicts natural_process = true

end Counterexamples

end VakyaVallari.Verses.V1_52