title: Is there a way to add an intersection to a set in python?
body: <p>For example:</p>
  <pre><code>A=set(frozenset[x,x+1]for x in range (10))
  B=set()
  C=set()
  Result=set()
  for B in A:
        for C in A:
              if B!=C:
                   Result.add(frozenset(B.intersection(C)))
  </code></pre>
  <p>#Error: descriptor 'intersection' for 'frozenset' objects doesn't apply to a 'types.GenericAlias' object</p>