Equations v1.2.1 for Coq 8.9
This is mainly a bugfix release of v1.2 including:
- Fixing the global export of Set Keyed Unification that broke users developments.
- Fix an undeclared universe anomaly in principle generation code.
Note: only Equations for Coq version 8.10 and above supports the use of the HoTT library (it required changes in both Coq and the HoTT library).