The Carnapian and mereological answers to the same question cannot both be correct without qualification.

The puzzle is to explain how both the Carnapian and mereological answers to the one and same question could be correct and yet mutually incompatible, for unless we abandon the most fundamental law of logic, the law of non-contradiction, we cannot deem one and the same proposition true and not true. Relativists respond that both answers are correct, each relative to the conceptual scheme it invokes. So, once we accept the insight that there is no Archimedean vantage point for choosing among confl