Question

which is more stable-theory or law

Answer 1

In model theory, a complete theory is called stable if it does not have too many types. One goal of classification theory is to divide all complete theories into those whose models can be classified and those whose models are too complicated to classify, and to classify all models in the cases where this can be done. Roughly speaking, if a theory is not stable then its models are too complicated and numerous to classify, while if a theory is stable there might be some hope of classifying its models, especially if the theory is superstable or totally transcendental

Answer 2

law is more stable than theory because law tell us about the behaviour of nature law are true and invariable no law is violated during physics process.

theory on the other hand developed on the basis of known laws to explain the observation and experimental result theories may be modified whenever required