SIDE BY SIDE

Compare mantic systems

Read systems against shared questions to identify common language, procedural differences and distinct limits.

Read differences by dimension; historical evidence labels do not imply predictive validity.
Dimension扬雄《太玄》 ↗蓍筮与《周易》 ↗
FamilyYijing-derived and correlative systemsDivination and correlative foundations
InputsHeads, appraisals, diagrams and edition notesProcedure edition, operation log and line values
Procedural structureEach line has three states; four lines yield eighty-one tetragrams, with nine appraisals describing positions within each. The system also coordinates regions, calendrical degrees and the five phases.The received yarrow procedure repeatedly divides, sets aside, counts by fours and collects remainders to obtain line values six through nine. The primary hexagram, changing lines and resulting hexagram form the interpretive object.
FormationLate Western HanLayered formation from Western Zhou through the Warring States
Evidence labelsTextually documentedExcavated evidence · Textually documented · Traditional attribution
TextsTaixuan / Book of Han, Biography of Yang Xiong / Commentaries by Fan Wang, Sima Guang and othersZhou Changes and its Wings / Divination accounts in the Zuo Tradition and Discourses of the States / Tsinghua bamboo manuscript Shifa
LimitsThe Taixuan is neither an ordinary sixty-four-hexagram method nor a set of modern fate-calculation formulas.The lineage of Fuxi, King Wen, the Duke of Zhou and Confucius is an influential traditional genealogy, not a straightforward conclusion of modern textual history.
Research questionHow does structural hierarchy locate an appraisal?How do moving-line conventions change the passage selected?