stitch markers
...that stitch markers are mnemonic devices that demonstrate the underlying mathematical basis of crochet?
...that  <b id="mwBmk"><a href="./Stitch_marker_(crochet)" id="mwBmo" rel="mw:WikiLink" title="Stitch marker (crochet)">stitch markers</a></b> <i id="mwBms">(pictured)</i> are <a class="mw-redirect" href="./Mnemonic_device" id="mwBmw" rel="mw:WikiLink" title="Mnemonic device">mnemonic devices</a> that demonstrate the underlying <a href="./Mathematics" id="mwBm0" rel="mw:WikiLink" title="Mathematics">mathematical</a> basis of <a href="./Crochet" id="mwBm4" rel="mw:WikiLink" title="Crochet">crochet</a>?