Generally speaking , if at formula _ 15 , a certain Feynman diagram is represented by an integral formula _ 16 , at finite temperature it is given by the sum formula _ 17 .
If a certain Feynman chart is generally given in Formula 15 by an integral formula 16 , it is represented by the sum formula 17 at finite temperature .

Are these two sentences paraphrases of each other?
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a). no;
b). yes;
a).