Are we to assume x,y,z,w are members of some kind of ring? --Dan Emeric wrote: << I am interested in an analytic device to handle the following simple situation. I have a polynomial P in several variables, x,y,z,u, say. It is of degree 2 in each variable. I would like to evaluate the polynomial when x^2 = 0, y^2 = 0, z^2 = 0, u^2 = 0 BUT x=y=z=u=1. Many thanks for any comment, hint, input.

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