SIDE BY SIDE
Compare mantic systems
Read systems against shared questions to identify common language, procedural differences and distinct limits.
| Dimension | 大六壬 ↗ | 太乙 ↗ |
|---|---|---|
| Family | The Three Cosmic Boards and spatiotemporal methods | The Three Cosmic Boards and spatiotemporal methods |
| Inputs | Day stems-branches, monthly general, hour and transmission rules | Accumulated-year convention, board parameters, agents and edition |
| Procedural structure | After the monthly general is placed over the hour, four relations are derived from the day stem and branch. Rule families such as overcoming, matching, depth and remote control select three transmissions, which are read with twelve generals, natal signs and pattern classes. | An epoch and accumulated-year calculation yields a configuration; Taiyi, Wenchang, Shiji and host-guest generals are placed in palaces and read through interior-exterior, host-guest and positional relations. |
| Formation | Han cosmic boards form an early background; mature textual systems are confirmed by Tang-Song | Han bibliographic traces; full received systems chiefly visible after the Tang-Song |
| Evidence labels | Excavated evidence · Textually documented · Contested lineage or date | Textually documented · Traditional attribution · Contested lineage or date |
| Texts | Jingyou Liuren Shending Jing / Liuren Daquan / Liuren Zhinan / Liuren Case Judgments | Taiyi Jinjing Shijing / Taiyi Tongzong Baojian / Relevant entries in the Han bibliography |
| Limits | A Han board does not prove that the entire received system already existed. Transmission-selection rules are complex and vary in details by school. | Epochs, configuration rules and agent names differ across texts. Invention by the Yellow Emperor is a lineage claim, not a historical authorship finding. |
| Research question | Can the selection from lessons to transmissions be reproduced? | At which step does a different epoch change the arrangement? |