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The Seed of Reasoning: Notes on the Five Great Logical Arguments of the Middle Way

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A short zin bris (notes; rigs pa’i sa bon, “The Seed of Reasoning”) on the Five Great Reasonings (gtan tshigs chen po lnga) by Jamyang Khyentse Wangpo (འཇམ་དབྱངས་མཁྱེན་བརྩེའི་དབང་པོ་, 1820–1892), the Sakya master and co-founder of the Rimé (non-sectarian) movement. Translated by Adam Pearcey (Lotsawa House, 2018) from the gsung ‘bum (BDRC W21807, vol. 6: 180–184). The Tibetan title is dbu ma’i gtan tshigs chen po rnam pa lnga las brtsams pa’i zin bris rigs pa’i sa bon.

Per the wiki author’s brief, Jamyang Khyentse Wangpo is not a Madhyamaka interpreter of the rank that warrants a dedicated scholar page; this text is added to enrich the Five Great Reasonings concept page, where its content is merged.

Thesis / main argument

Not an argumentative treatise but a compact pedagogical enumeration: the five reasonings are presented in fixed order, each with a one-paragraph treatment built as a formal debate-syllogism (thesis, reason, example). The text’s organising claim is the standard division of labour between the reasonings: the first four overcome the extreme of reification (སྒྲོ་འདོགས་, superimposing existence); the fifth — Great Interdependence — overcomes the extreme of denial (སྐུར་པ་འདེབས་པ་, deprecating phenomena as non-existent). The work closes by collapsing the toolkit into a single function: since no phenomenon has any real nature, “there is nothing to be refuted,” and the reasonings are deployed only when an opponent superimposes true existence — at which point any one of them suffices.

Key claims

  • The five, in fixed order (matching the wiki’s standard enumeration): (1) investigation of the cause — the Diamond Splinters (rdo rje gzegs ma); (2) investigation of the result — refuting existent or non-existent effects; (3) investigation of both — refuting the four permutations of arising; (4) investigation of essential identity — neither one nor many; (5) Great Interdependence.
  • Two-extremes division of labour (opening section): first four → reification-extreme; fifth → denial-extreme. This differs in framing from the wiki’s current “interdependence refutes both extremes” rationale for its being the king of reasonings — see the contradiction note below.
  • Each reasoning is cast as an autonomous syllogism with a worldly example: “Take [the subject]. It follows that it is unreal, because … like a dream / a reflection / the moon in water.” The translator’s note (n. 2) makes this explicit: “For each of the five arguments Jamyang Khyentse offers a syllogism in the formal language of debate, complete with thesis, reason and example.”
  • Textual loci cited for each reasoning:
    • Cause / Diamond Splinters → Mūlamadhyamakakārikā I.1.
    • Result → Mūlamadhyamakakārikā I.6 (“Whether for existent or non-existent things, a contributive condition would be invalid”).
    • Four permutations → Jñānagarbha’s Satyadvayavibhaṅga (“The Two Truths”) v. 14 — a textual attribution the concept page previously lacked for this reasoning.
    • Neither one nor many → Madhyamakālaṅkāra (“Since they lack a true identity as singular or multiple, things are without inherent nature”).
    • Great Interdependence → Mūlamadhyamakakārikā XXIV.18, reinforced by the Anavataptanāgarājaparipṛcchā Sūtra (Questions of the Nāga King Anavatapta).
  • The illusion (māyā) example for interdependence: conjured horses and oxen — produced by sticks and mantras — appear without any actual horse or ox being present; likewise all phenomena, “from mountains to ordinary men and women,” are nothing more than accumulations of atoms and momentary, hence empty of substance while appearing unceasingly. “The unity of appearance and emptiness” is named as the path of the Middle Way.
  • Convergent-toolkit conclusion: nothing to be refuted in itself; the reasonings are triggered only by an opponent’s “fixation on true reality,” and any one of them is then sufficient.

Methodology

Traditional Tibetan scholastic man ngag / zin bris compression: doctrine stated as settled, grounded in verse citations, deployed through formal syllogism. Notably, although Jamyang Khyentse stands in the Sakya/Rimé orbit (and the ekānekaviyoga he gives is the Śāntarakṣita reasoning), he presents the arguments in the autonomous-syllogism (svatantra) format — thesis-reason-example — rather than as bare prasaṅga consequences. This is the formal-probative deployment, not the consequentialist one.

Notable quote

“any of the reasonings outlined above would be sufficient to pulverize the assertion” (Pearcey trans.)

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