importproveit# Automation is not needed when building common expressions:%common_expressions_notebook # Keep this at the top following 'import proveit'.
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%begin common
Defining common sub-expressions for theory 'proveit.physics.quantum.QFT'
Subsequent end-of-cell assignments will define common sub-expressions
%end_common will finalize the definitions
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%end common
Theory proveit.physics.quantum.QFT has no common expressions