Recent content by Hirman

  1. H

    Prove Q is the equivalence relation on A

    I’m sorry.But I have no ideal how to get start.I can't see the connection between x and y in A, the only connection is in B.But B is another set.
  2. H

    Prove Q is the equivalence relation on A

    How to prove Q is an equivalence relation on A?
  3. H

    Prove Q is the equivalence relation on A

    f(x)∈ dom(R), f(y)∈ ran(R) and f(x)Rf(y)
  4. H

    Prove Q is the equivalence relation on A

    R is an equivalence relation on R iff R is a binary relation on A that is reflexive on A, symmetric and transitive
  5. H

    Prove Q is the equivalence relation on A

    I can’t understand it.