Grassmann number
In mathematical physics , a Grassmann number , named after Hermann Grassmann ( also called an anticommuting number or supernumber ) , is an element of the exterior algebra over the complex numbers . 
<triplet> Grassmann number <subj> Hermann Grassmann <obj> named after <subj> exterior algebra <obj> part of <triplet> exterior algebra <subj> Hermann Grassmann <obj> creator