I stared for a long time at your third sentence before I remembered that Leibniz is the correct name of the German mathematician you are referring to, and Leipz

I stared for a long time at your third sentence before I remembered that Leibniz is the correct name of the German mathematician you are referring to, and Leipzig is a German city (where, coincidentally, he was born). https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz https://en.wikipedia.org/wiki/Leipzig https://en.wikipedia.org/wiki/Leipzig