σ-ring and σ-algebra of Sets1
Endou, Noboru, Nakasho, Kazuhisa, Shidama, Yasunari
Functional Space C(ω), C0(ω)
Kanazashi, Katuhiko, Okazaki, Hiroyuki, Shidama, Yasunari
Lebesgue's Convergence Theorem of Complex-Valued Function
Narita, Keiko, Endou, Noboru, Shidama, Yasunari