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  • ...rderable cardinals is well-ordered, we can reasonably talk about the least cardinal in bijection with a set <math>S</math>. In the absence of <math>\sf{AC}</ma
    2 KB (263 words) - 23:54, 16 November 2019
  • ...the political intrigues common of the era, particularly those relating to Cardinal Richelieu.
    5 KB (862 words) - 10:20, 27 September 2024
  • ...oblems. For example, one may wish to show <math>|S|=\kappa</math> for some cardinal <math>\kappa</math>. One strategy is to find sets <math>A,B</math> such tha
    4 KB (805 words) - 12:09, 20 February 2024
  • ...t regular intervals, and this was improved even more by Ptolemy, who added cardinal directions and divided degrees into minutes and seconds.
    1 KB (226 words) - 19:14, 14 December 2009
  • ...om any point on the border, the farthest that it can go is 5 units in some cardinal direction, which gives us the tiled region in the diagram above. Finally, f
    7 KB (1,206 words) - 15:28, 5 September 2024