I want to show that the set of points (p,q) on the plane with rational coordinates p and q is countable. I proved set of rational numbers is countable by drawing table and I find (http://web01.shu.edu/projects/reals/infinity/proofs/combctbl.html ) Combining Countable Sets. However, I cannot put these together in table.(adsbygoogle = window.adsbygoogle || []).push({});

Could it be proven by matematically instead of table drawing?

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Is set of points (p,q) countable?

Loading...

Similar Threads - points countable | Date |
---|---|

I Points of a finite projective line | Sep 14, 2016 |

I Categories of Pointed Sets - Aluffi, Example 3.8 | May 3, 2016 |

Transform that maps points from any quad to an reactangle | Sep 22, 2015 |

Does Cayley's Theorem imply all groups are countable? | Jan 4, 2014 |

**Physics Forums - The Fusion of Science and Community**