"Implied" is to "explicit" as "implication" is to what?
Solution 1:
Declaration: a formal or explicit statement or announcement
In short, Bob should say: "My declaration contradicts your perceived implication."
Solution 2:
I think your expression "explicitly stated" is a bit redundant, and I'd use statement as the word you want.
I don't think one can state something implicitly...
Solution 3:
Although I agree with the notion that were there a need for such a word, one would exist, I couldn't resist the attempt. So if an implication is something which has been implied, and therefore not stated, we're looking for a word that means "that which has been explicitly said". The closest I can get is assertion
.