Can a later Sanhedrin overturn a ruling derived through logical analysis by an earlier Sanhedrin?
A later court may overturn logically-derived rulings, as we follow 'the judge who will be in that age.' However, widely accepted decrees and traditions cannot be overturned so easily.
Question 2
To annul a decree that spread throughout all Israel, the later court must surpass the original in:
The later court must be greater in BOTH wisdom AND number of adherents. Being greater in only one dimension is insufficient to annul prior decrees.
Question 3
What is the analogy the Rambam uses for a court temporarily overriding Torah law?
Just as a doctor amputates a limb so the whole person lives, a court may rule to temporarily violate some commandments so that the Jewish people will keep all commandments in the long run.
Question 4
If a court issues a decree and the community cannot uphold it, what happens?
A decree is void if the majority of the community cannot sustain it. The court may not compel the people to follow a decree that did not take hold in practice.
Question 5
Why is forbidding fowl cooked in milk as a Rabbinic decree NOT a violation of 'Do not add to the Torah'?
The prohibition of 'do not add' applies to claiming something is biblical law when it is not. Openly labeling a prohibition as a Rabbinic decree safeguarding Torah — not Torah itself — is entirely permitted.