関連する話題: science,math and English; ✨パート②🍻3個つながりしりとり📝。; ＡｄｉａｒｙｉｎＥｎｇｌｉｓｈ

Science,English,and math 4th

No.175　21/03/28 20:15
燻し銀三 ( 60代 ♂ IJ7P0b ) あ+あ-

【A correspondence by one to one and a string of Hideyoshi】

《Making a stone and a thing correspond》

When there are two kinds of set, A and B, every element on A corresponds with only element on B, at the same time, every element on B corresponds with only element on A. It’s the correspondence by one to one.

For example, a system on my number has started in Japan from 2015. All individuals who have its certificate of residence in Japan are given different number in twelve digit number.

As long as the one has the certificate of residence in Japan, everyone corresponds with one of my number...

共感2

最初

注目の話題

カテゴリ一覧

お悩み解決掲示板へ

マイページ

登録情報

Science,English,and math 4th

関連する話題

ふとした疑問掲示板のスレ一覧

サブ掲示板

注目の話題

カテゴリ一覧