Ok, I'm not very familiar with set notation. I was just wondering if the following is correct notation and means what I think:(adsbygoogle = window.adsbygoogle || []).push({});

{x[itex]\in[/itex]S : [itex]\exists[/itex]y[itex]\in[/itex]x, y[itex]\in[/itex]W}

S is a set of pairs of symbols (tuples of length 2 is the technical term I believe). W is a set of symbols.

What I want is the set of pairs in S that contain at least 1 symbol from set W.

Does my set builder notation correctly describe what I'm looking for? I don't necessarily have to use set builder notation; I just can't think of a way to describe it with unions, intersections, and quantifiers.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Need set notation help.

Loading...

**Physics Forums | Science Articles, Homework Help, Discussion**