The sequence,
震 离艮坤 乾兑坎 巽 乾兑坎 离艮坤
is actually four unique states,
reduced because, 2 degrees of freedom have been taken away; constrain by the infinite loop and the rotation on the earth plane every half cycle.
These four states match with SiXiang (四象), formed before BaGua (八卦). It is still binary.
So?
Note: For 震 and 巽 remove top Yao (爻), the last Yao added. For 离艮坤 and 乾兑坎 take center and remove top Yao. Arbitrarily.
