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! Commutative Diagram: badly drawn diagonals (see manual) at lines 730--736
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\OT1/cmr/bx/it/12 Proof.\OT1/cmr/m/it/12 By Lemma []5.3[][], $\OML/cmm/m/it/12 
t[]$ \OT1/cmr/m/it/12 has an in-fi-nite $\OMS/cmsy/m/n/12 S$\OT1/cmr/m/it/12 -n
eeded re-duc-tion $\OML/cmm/m/it/12 P \OT1/cmr/m/n/12 : \OML/cmm/m/it/12 t[][]t
[][] []$\OT1/cmr/m/it/12 .
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2 U[]$ \OT1/cmr/m/it/12 (oth-er-wise there should be a num-ber $\OML/cmm/m/it/1
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[]\OT1/cmr/m/n/10.95 Z. Khasi-dashvili and J.R.W. Glauert, Dis-crete nor-mal-iz
a-tion and
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Commutative Diagram: try the PostScript option for better results
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