Yes, such wonderful sites that must put annoying bouncing &quot;Click here to see more&quot; and &quot;Join our newsletter&quot; things around everything.<p>By the way, this particular note appears to be taken from &quot;Biscuits of Number Theory&quot;. Compare with this scan from Google Books:<p><a href="https:&#x2F;&#x2F;books.google.si&#x2F;books?id=_g5TvMCJQB4C&amp;pg=PA109&amp;lpg=PA109&amp;dq=harley+flanders+irrationality&amp;source=bl&amp;ots=ShlKfjMAQg&amp;sig=jBwurdoANm2e5cCgo-jn0Fa0DGg&amp;hl=sl&amp;sa=X&amp;ved=0ahUKEwiq2Nys5PHJAhXFFSwKHWr2C-YQ6AEIJjAA#v=onepage&amp;q=harley%20flanders%20irrationality&amp;f=false" rel="nofollow">https:&#x2F;&#x2F;books.google.si&#x2F;books?id=_g5TvMCJQB4C&amp;pg=PA109&amp;lpg=P...</a>