Mathematics, 13.09.2019 19:30, lornalamkin

Let s be the subset of r^2 consisting of all points (x, y) in the unit square [0, 1] x [0, 1] for which x or y. or both, are irrational. with respect to the standard topology on r, s is (a) closed (b) opein (c) connected d) totally disconnected (e) compact

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Let s be the subset of r^2 consisting of all points (x, y) in the unit square [0, 1] x [0, 1] for wh...