Desargues theorem

Desargues theorem

1

Proofs of Desargues Theorem

关于笛沙格定理的证明
2

Another Proof of Desargues Theorem on P ~ n

P~n上德萨格定理的另一个证明
3

Some Problems on Application of Desargues Theorem

Desargues定理的应用及在使用中应注意的几个问题
4

A Generalized Desargues Theorem in P ~ n

Desargues定理在P~n中的推广
5

Composition and Application of Desargues Theorem

Desargues定理的构图及应用
6

Give a method to prove Desargues Theorem with Pappus Theorem on n-dimensional projective space P ~ n.

在n维射影空间Pn中，给出了用帕普斯定理来证明德萨格定理的另一个方法。
7

The Relation of Pappus Theorem to Desargues Theorem

Pappus定理与Desargues定理之间的关系
8

The Desargues Theorem on tetrahedroid in p ~ 3

P~3中关于四面体的Desargues定理
9

From the Desargues ' Involutory Theorem to the Butterfly Theorem

从Desargues对合定理到蝴蝶定理