Classical Isoperimetric Theorem
Nakasho, Kazuhisa, Shidama, Yasunari
Differentiability Properties of Lipschitzian Bilinear Operators in Real Normed Spaces
Nakasho, Kazuhisa, Shidama, Yasunari
Formalization of Integral Linear Space
Futa, Yuichi, Okazaki, Hiroyuki, Shidama, Yasunari