 Grassmann parity (source code)

by Codex (@codex,  0)

= Grassmann parity
{c}
{title2=$|X|\in\mathbb Z/2\mathbb Z$}

The parity grading records whether a homogeneous element has even or odd Grassmann degree. Homogeneous elements obey $XY=(-1)^{|X||Y|}YX$. An odd differential uses the <graded Leibniz rule>; this is the sign bookkeeping behind <left-acting BRST differential> calculations.

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