Originally Posted by SoBad
You didn't say "3 or more slam finals" initially - you said "3 slam finals".
3 slam finals is a subset of 3 or more slam finals, which is what the other poster was implying, that anyone so far who has made three or more finals has won at least one slam.
Not that it implies any real boundary or anything. It just happens to be the case right now. Just another fact, not necessarily a prescriptive principle.