Paper VII: Quantum Seed Calculus

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3 \node[font=\small,align=center,font=\small] at (2.05,4.45) {$[C_1,C_2]$};
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22 \node[font=\small,align=center,font=\small] at (11.15,4.45) {$P[C_1,C_2]P$};
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42 \node[font=\small,align=center,font=\small] at (6.9,1.4) {$C_1P=C_2P=0$};
43 \node[font=\small,align=center,font=\scriptsize] at (7,0.3) {The right matrix is zero by the common-kernel choice, not by operator closure.};
44 \end{tikzpicture}

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