importproveit# Prepare this notebook for defining the theorems of a theory:%theorems_notebook # Keep this at the top following 'import proveit'.
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%begin theorems
Defining theorems for theory 'proveit.logic.sets.power_set'
Subsequent end-of-cell assignments will define theorems
'%end theorems' will finalize the definitions
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%end theorems
Theory proveit.logic.sets.power_set has no theorems