21. This involution follows the reverse stages to the sequence of evolution-e . g. 22. Middle crisscross fibres act as living ligature during involution of uterus and prevent blood loss. 23. After involution ( the uterus returning to pre-pregnancy size ) due to infection. 24. Further involution of consciousness makes the soul experience the " third plane ". 25. An involution is a permutation ? so that ? 2 = 1 under permutation composition. 26. This generalizes the concept of an involution . 27. The final is constructed from the non-split octonions using a different standard involution . 28. It remains to construct the involution , which we call " f ". 29. The remaining cases are constructed uniformly by Koecher using involutions of simple Euclidean Jordan algebras. 30. There is an associated involution on which gives rise to a complex inner product on.
