Is there a way to represent Grassmann Numbers from previously known mathematical entities? Something like when it is said, for "C", that z=x+i*y and i^2=-1 or that z = [a -b; b a] with the usual rules of matrix sum and multiplication? It is pretty strange to me that it is so hard to find books or pdfs on line about it. has someone ever demonstrated that these entities even exist? Is fermionic math supported over nothing????