[[1] Agata Darmochwał. The Euclidean space. Formalized Mathematics, 2(4):599-603, 1991.]Search in Google Scholar
[[2] Krzysztof Hryniewiecki. Basic properties of real numbers. Formalized Mathematics, 1(1):35-40, 1990.]Search in Google Scholar
[[3] Akihiro Kubo. Lines in n-dimensional Euclidean spaces. Formalized Mathematics, 11(4):371-376, 2003.]Search in Google Scholar
[[4] Akihiro Kubo and Yatsuka Nakamura. Angle and triangle in Euclidian topological space. Formalized Mathematics, 11(3):281-287, 2003.]Search in Google Scholar
[[5] Beata Padlewska and Agata Darmochwał. Topological spaces and continuous functions. Formalized Mathematics, 1(1):223-230, 1990.]Search in Google Scholar
[[6] Marco Riccardi. Heron’s formula and Ptolemy’s theorem. Formalized Mathematics, 16(2):97-101, 2008, doi:10.2478/v10037-008-0014-2.10.2478/v10037-008-0014-2]Search in Google Scholar
[[7] Wojciech A. Trybulec. Vectors in real linear space. Formalized Mathematics, 1(2):291-296, 1990.]Search in Google Scholar
[[8] Freek Wiedijk. Formalizing 100 theorems. http://www.cs.ru.nl/~freek/100/.]Search in Google Scholar
[[9] Yuguang Yang and Yasunari Shidama. Trigonometric functions and existence of circle ratio. Formalized Mathematics, 7(2):255-263, 1998.]Search in Google Scholar