- Added more basic type former isomorphisms
- Decomposed contr-equiv-LiftUnit into contr-equiv-Unit and lift-equiv
added precedence for \simeq
eliminated some unnessecary universe level equalities
added equiv-\Pi and equiv-\Sigma
added suitable operator preferences for _<_, _\leq_, _<T_, _\leqT_, _-1, _-2
added both possible versions of equiv-\Sigma and equiv-\Pi
this library requires Agda 2.3.2.2 now (reason: predefined universe levels)
fixed universe levels
commented change resp. universe levels
fixed version typo
undid universe level change
omitted a whitespace
Merge pull request #3 from sattlerc/2.0

Various enhancements.