return true
                                        }
                                }
+                       case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+                               switch vv.Kind() {
+                               case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+                                       if vv.Uint() == lvv.Uint() {
+                                               return true
+                                       }
+                               }
                        case reflect.Float32, reflect.Float64:
                                switch vv.Kind() {
                                case reflect.Float32, reflect.Float64:
                        if l1v.Type() != l2v.Type() &&
                                l1v.Type().Elem().Kind() != reflect.Interface &&
                                l2v.Type().Elem().Kind() != reflect.Interface {
-
                                return r.Interface(), nil
                        }
 
 
                {[]interface{}{int16(1), int16(2), int16(3)}, []int16{1, 2, 2}, []interface{}{int16(1), int16(2)}},
                {[]interface{}{int32(1), int32(2), int32(3)}, []int32{1, 2, 2}, []interface{}{int32(1), int32(2)}},
                {[]interface{}{int64(1), int64(2), int64(3)}, []int64{1, 2, 2}, []interface{}{int64(1), int64(2)}},
+               {[]interface{}{uint(1), uint(2), uint(3)}, []uint{1, 2, 2}, []interface{}{uint(1), uint(2)}},
                {[]interface{}{float32(1), float32(2), float32(3)}, []float32{1, 2, 2}, []interface{}{float32(1), float32(2)}},
                {[]interface{}{float64(1), float64(2), float64(3)}, []float64{1, 2, 2}, []interface{}{float64(1), float64(2)}},
 
                {[]float32{2.2, 4.4}, []interface{}{1.1, 2.2, 4.4}, []float32{2.2, 4.4, 1.1}, false},
 
                // []interface{} ∪ []T
-               {[]interface{}{"a", "b", "c", "c"}, []string{"a", "b", "b"}, []interface{}{"a", "b", "c"}, false},
+               {[]interface{}{"a", "b", "c", "c"}, []string{"a", "b", "d"}, []interface{}{"a", "b", "c", "d"}, false},
                {[]interface{}{}, []string{}, []interface{}{}, false},
                {[]interface{}{1, 2}, []int{2, 3}, []interface{}{1, 2, 3}, false},
                {[]interface{}{1, 2}, []int8{2, 3}, []interface{}{1, 2, int8(3)}, false},
+               {[]interface{}{uint(1), uint(2)}, []uint{2, 3}, []interface{}{uint(1), uint(2), uint(3)}, false},
                {[]interface{}{1.1, 2.2}, []float64{2.2, 3.3}, []interface{}{1.1, 2.2, 3.3}, false},
 
                // errors