title: How to determine if something is a member of an ordered set?
body: <p>From what I see there's no command for this, but I need something similar to the <a href="http://redis.io/commands/sismember" rel="noreferrer">SISMEMBER</a> command, but for ordered sets. Given that there's no command for this, what's the best way to determine if something is a member of an ordered set ? Maybe ask for the score of the member with ZCORE and if there's no score than there's no member ?</p>