Chaïm Perelman and Lucie Olbrechts-Tyteca’s Account of Analogy Applied to Law: the Proportional Model of Analogical Legal Reasoning
Chaïm Perelman and Lucie Olbrechts-Tyteca’s Account of Analogy Applied to Law: the Proportional Model of Analogical Legal Reasoning

Summary/Abstract: In this paper, the author has undertaken an attempt to adjust Chaïm Perelman and Lucie Olbrechts-Tyteca’s conception of analogy to the province of law. He thus sketches out a pertinent scheme of legal analogy based upon the similarity of proportions and indulges in a consideration of the merits and demerits of such a proposition. To this aim, as the proportions that are compared in such an account of analogy, the relations between the facts of the cases and their legal outcomes were chosen: one such outcome already known and one tentatively posited. Finally, however, the author’s analyses lead to the conclusion that despite its considerable theoretical attractiveness and some mystical charm, legal analogy consisting of the comparison of two proportions is either quite similar to orthodox approaches to analogical reasoning in law or too obscure for one to employ it credibly in the legal setting. In consequence, until its proponents have elucidated the workings of proportional analogy in more detail, the potential use of such a form of analogy in the province of law does not seem promising and cannot be recommended.

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