Esta dissertação abordará alguns dos conceitos necessários para uma pré-compreensão sobre o contrato no direito brasileiro após a recepção da função social do contrato na cláusula geral do art. 421 do Código Civil. Serão confrontadas as idéias de tipicidade e individualidade no contrato, a partir do que se questionará a teoria empregada como base para a redação do artigo referido e a idéia de unidade do direito contratual brasileiro. / This paper aims at presenting some of the concepts necessary for a pre-comprehension regarding the contract in Brazilian law after the reception of the social function of the contract in general clause of 421 Article from the civil code. Vagueness doctrine and individuality will be confronted, from what will be questioned in the theory employed as basis for the writing of the 421 article from the civil code as well as the unity in Contract Law.

Esta dissertação abordará alguns dos conceitos necessários para uma pré-compreensão sobre o contrato no direito brasileiro após a recepção da função social do contrato na cláusula geral do art. 421 do Código Civil. Serão confrontadas as idéias de tipicidade e individualidade no contrato, a partir do que se questionará a teoria empregada como base para a redação do artigo referido e a idéia de unidade do direito contratual brasileiro. / This paper aims at presenting some of the concepts necessary for a pre-comprehension regarding the contract in Brazilian law after the reception of the social function of the contract in general clause of 421 Article from the civil code. Vagueness doctrine and individuality will be confronted, from what will be questioned in the theory employed as basis for the writing of the 421 article from the civil code as well as the unity in Contract Law.

Esta dissertação abordará alguns dos conceitos necessários para uma pré-compreensão sobre o contrato no direito brasileiro após a recepção da função social do contrato na cláusula geral do art. 421 do Código Civil. Serão confrontadas as idéias de tipicidade e individualidade no contrato, a partir do que se questionará a teoria empregada como base para a redação do artigo referido e a idéia de unidade do direito contratual brasileiro. / This paper aims at presenting some of the concepts necessary for a pre-comprehension regarding the contract in Brazilian law after the reception of the social function of the contract in general clause of 421 Article from the civil code. Vagueness doctrine and individuality will be confronted, from what will be questioned in the theory employed as basis for the writing of the 421 article from the civil code as well as the unity in Contract Law.

L'objectif de valeur constitutionnelle d'accessibilité et d'intelligibilité de la loi, largement inspiré du discours sur la « qualité de la loi », semble consister, dans la jurisprudence du Conseil constitutionnel, en deux exigences différentes : la capacité de la loi à avertir le citoyen et la soumission de l'administration et du juge au respect de la loi. Cette étude propose une dissociation de ces deux exigences, qui renvoient à deux « qualités » distinctes de la loi : celle ex ante et celle ex post. Alors que la « qualité » ex post concerne la prédétermination de l'utilisation du texte par les autorités chargées d'appliquer la loi, la « qualité » ex ante renvoie à l'information du citoyen sur la législation en vigueur et implique un renouvellement du rapport préjuridique du citoyen au droit. Cette étude propose également une comparaison entre la jurisprudence de la Cour suprême des États-Unis – « Vagueness doctrine » – et la jurisprudence du Conseil constitutionnel relative à la « qualité de la loi » / The « Quality of law » doctrine, as found in the jurisprudence of the Constitutional Council, has two functions. First it means that a citizen must have notice of a law before it is applied to him; and second that a statute's text must be sufficiently « clear » in order to avoid arbitrary enforcement. This thesis proposes a distinction between these two functions of the « Quality of Law » doctrine; the first reflecting an ex ante principle and the latter an ex post principle. Whereas the ex post « quality » deals with misuse of the statute's text by authorities charged with enforcement, the ex ante function – fair notice of laws in force – requires a more modern meaning as the nature of law changes and its delivery becomes more fractured and unpredictable. This thesis includes a comparison of the French doctrine with a parallel doctrine in American Constitutional Law – the « Vagueness doctrine »