ABSTRACT Legal certainty is a central requirement for the rule of law. Legal systems should both enable those subject to law to predict human behaviour and institutional reactions and to prevent an arbitrary use of state power against them. The value of legal certainty is usually conceived as a formal value opposed to the values of freedom or equality (material or substantive justice). The purpose of this paper is to discuss this idea and to explore a less formal conception of the value of legal certainty. In this sense, I will argue that we need to depart from a purely formal understanding of the requirements imposed by such value and to consider the need to provide them with a substantive content. So, legal certainty is not completely independent of legal substantive justice and it implies that it is impossible to define ex ante which concrete aspects of justice should not be the law’s concern.

中文翻译：

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法律确定性是一种形式价值吗？

摘要 法律确定性是法治的核心要求。法律制度既应使受法律约束的人能够预测人类行为和制度反应，并防止对他们任意使用国家权力。法律确定性的价值通常被认为是一种与自由或平等（物质或实体正义）价值相反的形式价值。本文的目的是讨论这个想法，并探索一个不太正式的关于法律确定性价值的概念。在这个意义上，我认为我们需要摆脱对这种价值所强加的要求的纯粹形式的理解，并考虑为它们提供实质性内容的必要性。所以，