Recent content by lwpirelliwl

  1. L

    Undergrad Equivalence Relations in A={a,b,c,d}: Proving the Bell Number Theorem

    No I have multiple accounts, I'm just wondering mate first and wanted to put the question in the right forum
  2. L

    Undergrad Equivalence Relations in A={a,b,c,d}: Proving the Bell Number Theorem

    Our math Teacher asked us to find how many equivalence relations are there in a set of 4 elements, the set given is A={a,b,c,d} I found the solution to this problem there are 15 different ways to find an equivalence relation, but solving the problem, i looked in Internet that the number of...