Summa de arithmetica
... that the Summa de arithmetica , thought to be the first printed work on algebra, contains the first published description of double-entry accounting?
... that the <i id="mwBS0"><b id="mwBS4"><a href="./Summa_de_arithmetica" id="mwBS8" rel="mw:WikiLink" title="Summa de arithmetica">Summa de arithmetica</a></b></i> <i id="mwBTA">(title page shown)</i>, thought to be the first printed work on <a href="./Algebra" id="mwBTE" rel="mw:WikiLink" title="Algebra">algebra</a>, contains the first published description of <a class="mw-redirect" href="./Double-entry_bookkeeping_system" id="mwBTI" rel="mw:WikiLink" title="Double-entry bookkeeping system">double-entry accounting</a>?