Recent content by eddiep1993

  1. E

    Graduate Proving A ∩ B ⊆ C from disjoint sets A and B\C

    I am currently reading vellemans how to prove it for the purpose of being able to construct a proof on my own. I would like to carry on this knowledge to also help me out with spivaks calculus So the problem is: Prove that if a and b\c are disjoint, then a\bigcapb\subseteqc. 1.goal...