Hi
What does "objects" mean?
"Professor Marceau objects to the loop invariant used in the proof of Lemma 5.5. He questions whether it is true prior to the first iteration."
" Best wishes, Joseph
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The verb "object" in your sentence means "disapprove of" or "disagree with" as follows:
"Professor Marceau objects to the loop..."
means:
"Professor Marceau disagrees with the loop ..."
Or
"Professor Marceau disapproves of the loop ..."
Best wishes,
Joseph