Let A(i) be the event that the first ith person have different birthdays for i=1,2,3...,n.(adsbygoogle = window.adsbygoogle || []).push({});

We note that A(i+1) is a subset of Ai such that Ai(A(i+1))= A(i+1)

I wonder why A(i+1) is a subset of Ai. If the first 3 people have no birthdays in common, shouldn't that also mean the first 2 people doesn't either? By that logic, shouldnt Ai be the subset of A(i+1)?

**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!

# The birthday problem concept question

Loading...

Similar Threads - birthday problem concept | Date |
---|---|

Are these medical records Anonymised ?, (birthday problem variant) | Feb 19, 2014 |

Generalized Birthday Problem | Aug 5, 2013 |

Generalisation To The Birthday Problem | Apr 12, 2013 |

Birthday Problem with Realistic Assumptions | Jul 21, 2011 |

Birthday problem-probability | Feb 13, 2011 |

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