ちょっと怖い橋もありました。先が見えません。この先へ進んだら殺人鬼の住む小屋がありそうじゃないですか？ In nineteenth century Europe, there was mathematical and philosophical dialogue about the precise mother nature in the natural figures. Henri Poincaré mentioned that axioms can only be demonstrated inside their finite software, and concluded that it's "the strength of the intellect" ... https://memorypluscapsulesonline.blogspot.com/