A property modifier is a function that takes a property to a property. For instance, the modifier short takes the property being a Dutchman to the property being a short Dutchman. Assume that being a round peg is a property obtained by means of modification, round being the modifier and being a peg the input property. Then how are we to infer that a round peg is a peg? By means of a rule of right subsectivity. How are we to infer that a round peg is round? By means of a rule of left subsectivity. This paper puts forward two rules (one general, the other special) of left subsectivity. The rules fill a gap in the prevalent theory of property modification. The paper also explains why the rules are philosophically relevant.

中文翻译：

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左分组：如何推断圆钉是圆的

属性修饰符是一个将属性转换为属性的函数。例如，修饰符 short 将作为荷兰人的属性转换为作为简短的荷兰人的属性。假设圆形钉子是通过修改获得的属性，圆形是修饰符，钉子是输入属性。那么我们如何推断一个圆钉是一个钉呢？通过权利分属主义的规则。我们如何推断圆钉是圆的？通过左分派的规则。本文提出了左派性的两条规则（一个是一般的，一个是特殊的）。这些规则填补了流行的财产变更理论的空白。该论文还解释了为什么这些规则在哲学上是相关的。