univInference.lean:25:0-27:9: error: failed to compute resulting universe level of inductive datatype, provide universe explicitly
S6 : Sort (max w₁ w₂) → Type w₂ → Sort (max w₁ (w₂ + 1))
univInference.lean:45:0-46:17: 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 u v
univInference.lean:64:0-65:22: error: failed to compute resulting universe level of inductive datatype, provide universe explicitly
univInference.lean:73:0-74:22: 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 u v
univInference.lean:81:0-82:22: 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 u v