negative base
...that in negative base systems, positive and negative numbers can be represented without the use of a minus sign?
...that in <b id="mwA8g"><a href="./Negative_base" id="mwA8k" rel="mw:WikiLink" title="Negative base">negative base</a></b> systems, positive and negative numbers can be represented without the use of a <a class="mw-redirect" href="./Minus_sign" id="mwA8o" rel="mw:WikiLink" title="Minus sign">minus sign</a>?