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？ The Sets used to outline natural quantities satisfy the Peano axioms. It follows that every theorem that could be stated and proved in Peano arithmetic will also be proved in set theory. get, get - arrive in the possession of some thing concrete or abstract; "She obtained lots of https://buystonecarecombo.blogspot.com