[SBV] tests/T31.hs:9:1 Proving "f", using Z3. [SBV] tests/T31.hs:9:1 Skipping proof. Non-boolean property declaration: Found : Int -> Int Returning: Int Expected : Bool result [SBV] tests/T31.hs:13:1 Proving "g", using Z3. [SBV] tests/T31.hs:13:1 Skipping proof. Non-boolean property declaration: Found : Char Expected : Bool [SBV] tests/T31.hs:17:1 Proving "h", using Z3. [SBV] tests/T31.hs:17:1 Skipping proof. Non-boolean property declaration: Found : Double Expected : Bool