Sheet 1
Abhidhamma Mātikā
States
  Triads
    1. Karma: Wholesome | Unwholesome | neutral
    2. Feeling: Pleasant |Painful | Indifferent
    3. Karma results: are | are subject to | are neither karma results nor subject to
    4. Karmic acquisition and/or clinging:
karmically acquired and subject to clinging |
not karmically acquired, but subject to clinging |
neither karmically acquired nor subject to clinging
    5. Defilement:
Defiled and subject to defilement |
not defiled, but subject to defilement |
neither defiled nor subject to defilement
    6. * Thoughts and thinking:
With thought-conception and discursive thinking |
Without thought-conception, but with discursive thinking|
Without thought-conception or discursive thinking
    7. * Accompanied by rapture | joy | equanimity
    8. To be abandoned by:
understanding | mental development | either
    9. Having roots to be abandoned by:
understanding | mental development | neither
    10. Leading to: karma increase | karma decrease | neither
    11. Pertaining to training level: higher | completed | neither
    12. Limited | exalted | immeasurable
    13. * Objects: Limited | exalted | immeasurable
    14. Inferior | medium | superior
    15. Certainty (in result):
with certainty in wrongness |
with certainty of rightness |
with neither
    16. * Path as: object | root | predominant factor
    17. * Arisen | not arisen | bound to arise
    18. * Past | future | present
    19. * Object: Past | future | present
    20. internal | external | both
    21. * having objects: internal | external | internal and external
    22. visible and resistant | invisible and resistant | invisible and non-resistant
  Dyads
    Section on roots
    Minor Intermediate Section
    Section on Taints
    Section on Fetters
    Section on Ties
    Section on Floods
    Section on Yokes
    Section on Hindrances
    Section on Misapprehensions
    Major Intermediate Section
    Section on clinging
    Section on defilements
    Final Section
  The Suttanta Matrix
Abhidhamma-Mātikā
This precedes the first book, the Dhammasaṅgaṇī, but actually underpins the other books. It is a classification of terms given in the form of a matrix with entries comprising terms respectively in three and twos.
References:
- Guide Through the Abhidhamma-Pitaka by Nyanatiloka, 4th edition, 1983 (Kandy)
- The Matrix from the Abstract Teaching
(Abhidhamma-Mātikā from Dhammasaṅgaṇī) Translated by Ānandajoti Bhikkhu
(2nd revised edition, June, 2011/2055)
https://www.ancient-buddhist-texts.net/English-Texts/Abstract-Matrix/Abstract-Matrix.pdf
These formulae all refer to dhammā (phenomena or things)
Groups marked by * are sappadesa (have limited range)
Karmic states in terms of their wholesomeness; á-vyākṛta = 'undeveloped', effectively 'neutral'.
= maggārammaṇā dhammā| maggahetukā dhammā | maggādhipatino dhammā
What is the significance of this? Looks very interesting!