Summa Grammatica
... that the Summa Grammatica by Roger Bacon is sometimes considered to propose a universal grammar?
... that the <i id="mwAj8"><b id="mwAkA"><a href="./Summa_Grammatica" id="mwAkE" rel="mw:WikiLink" title="Summa Grammatica">Summa Grammatica</a></b></i> by <a href="./Roger_Bacon" id="mwAkI" rel="mw:WikiLink" title="Roger Bacon">Roger Bacon</a> <i id="mwAkM">(pictured)</i> is sometimes considered to propose a <a href="./Universal_grammar" id="mwAkQ" rel="mw:WikiLink" title="Universal grammar">universal grammar</a>?