title: How to tell that any object in a observable satisfies a condition?
body: <p>I have looked and it seems like there is an "All" operation that will tell if all items satisfy a condition but no "Any" is this just an oversight or am I missing something? I could recreate it with other operations, but I could say the same thing with All.</p>
  
  <pre><code>Observable.just(1,5,10)
            .filter(i -&gt; i &lt; 7)
            .reduce((c,n) -&gt; c &amp;&amp; n) // or "||" for any
            .subscribe(b -&gt; /* do stuff */);
  </code></pre>
  
  <p>Am I missing something or is there really just no Any?</p>