Evaluate the jurisprudential milestones established by the following landmark Supreme Court judgments regarding constitutional amendability:
1. The Constitutional Bench of the Kesavananda Bharati case (1973) formally defined the Basic Structure by providing an exhaustive, codified list of protected provisions.
2. The Golaknath case (1967) established that constitutional amendments executed under Article 368 fall within the definition of 'law' under Article 13.
3. The Minerva Mills case (1980) successfully incorporated the 'limited amending power of Parliament' into the protective ambit of the Basic Structure doctrine.