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This paper aims to compare diferente perspectives concerning do the attributes of legality, validity and efficacy of the juridical norms taking into account four exponents of the “General Theory of Law”: Hans Kelsen, Alf Ross, Herbert Hart e Ronald Dworkin. From the definitions built by those authors about the concept of Law and its relation to the social facts and moral rules it is possible to stablish a critical analysis about their own perceptions of such instances.

teorias do direito e realismo jurídico

VIGÊNCIA, VALIDADE E EFICÁCIA DA NORMA JURÍDICA: UMA ANÁLISE COMPARATIVA ENTRE AS PERSPECTIVAS ESTRUTURAL, EMPÍRICA, ANALÍTICA E FINALÍSTICA DO DIREITO.