Make predefine coframes compatible to Maxima coframes
Frame_bracket fix in ctensor.mac
Closing as fixed.
Agreed, tested your solution and I believe it is correct. Thank you!
Fixed frame_bracket in ctensor (thanks to R. Gobeli)
Updated the Einstein-Hilbert Lagrangian demo in i/ctensor
Harmless typo in ctensor.mac fixed
Fixed insufficient simplification in itensor Weyl demo