Agda-2.3.2.2: test/fail/Negative2.err
Negative2.agda:7,6-9 Bad is not strictly positive, because it occurs in the first argument to Tree in the type of the constructor bad in the definition of Bad.
Negative2.agda:7,6-9 Bad is not strictly positive, because it occurs in the first argument to Tree in the type of the constructor bad in the definition of Bad.