univInference.lean:26:0: error: failed to compute resulting universe level of inductive datatype, provide universe explicitly
S6 : Sort max w₂ w₁ → Type w₂ → Sort max w₁(w₂ + 1)
univInference.lean:46:0: error: invalid universe polymorphic type, the resultant universe is not Prop (i.e., 0), but it may be Prop for some parameter values (solution: use 'u+1' or 'max 1 u'
  max v u
univInference.lean:65:0: error: failed to compute resulting universe level of inductive datatype, provide universe explicitly
univInference.lean:74:0: error: invalid universe polymorphic type, the resultant universe is not Prop (i.e., 0), but it may be Prop for some parameter values (solution: use 'u+1' or 'max 1 u'
  max v u
univInference.lean:82:0: error: invalid universe polymorphic type, the resultant universe is not Prop (i.e., 0), but it may be Prop for some parameter values (solution: use 'u+1' or 'max 1 u'
  max v u