------------------------------------------------------------------------ 2021 07 September - First version of SymSpin.nb. Chosen version number 0.1.0. 14 September - Added ToIndexed and fixed bug in SymHToSymMultRule 15 September - Added TensorMinus and fixed bug with display of valence numbers of SymMult 17 September - Improved MultScalToSymMultRule 21 September - Fixed SymMultToMultScalRule and added NumOf(Un)primedSlots for MultScal 28 October - Fixed a bug with MultScalLeibnizRules 03 November - Fixed a bug in SortSymMult and a missing definition in IrrDecomposeSymMult 2022 02 June - Fixed bug in IsolateTensorPlus for cases with only one term. - Introduced ExtractCoeffsIndexFree to extract the coefficients of an indexfree spinor in expression or equation.