论文标题
合成投影线,几何闭合和AB套装
Synthetic projective lines, geometric closure and AB-sets
论文作者
论文摘要
在本说明中,我们引入了一种新的方法来抽象``合成''投影线。我们讨论了我们的方法的各个方面,并将这些方面与经典方面进行了比较。出现了许多有趣的问题。在这些方面,我们讨论了几何封闭,并引入了自动形态阻滞集。在无限情况下,我们还构建了许多(反)示例。
In this note, we introduce a new approach to abstract ``synthetic'' projective lines. We discuss various aspects of our approach, and compare these aspects with the classical one. A number of intriguing questions arise. Amongst these aspects, we discuss geometric closures, and introduce automorphism-blocking sets. We also construct a number of (counter) examples in infinite cases.