数直線 | 数学の星 https://math-jp.net 数とはなにか、無限とはなにか Sat, 22 Apr 2017 01:13:46 +0000 ja hourly 1 https://wordpress.org/?v=6.9 https://math-jp.net/wp-content/uploads/2016/12/cropped-2015-06-06-18.34.04-1-2-32x32.jpg 数直線 | 数学の星 https://math-jp.net 32 32 「数直線上の点を実数と対応させても隙間だらけ」が正解 https://math-jp.net/2017/04/19/post-2115/ https://math-jp.net/2017/04/19/post-2115/#comments Tue, 18 Apr 2017 23:11:18 +0000 http://www.math-jp.net/?p=2115 https://math-jp.net/2017/04/19/post-2115/feed/ 1