My question pertains to the usage of comma after a list of clauses of the form "X, Y, and Z (,) to/in order to <do something>"
Apply Equation 1, use Lemma 2, and exploit Theorem 3(,) to prove the finiteness of the result.
Is the comma necessary or not:
- if Theorem 3 alone is enough to prove the finiteness
- The three actions "Apply Equation 1, use Lemma 2, and exploit Theorem 3" prove the finiteness.
I'm tempted to add a comma in case 2. above to avoid potential ambiguity with the first case.