Sorry:mecry:, but wrong.
I quote myself (from original post #164 with riddle)
...
The first wites: "Exactly one sentence on this page is false."
The next person adds the line: "Exactly two sentences on this page are false."
The third writes: "Exactly three ..."
.....
and so on until the onehundedth writes: "Exactly 100 sentences on this page are false."
_______
I solve:
_______
If sentence
#1 was correct, this would mean: "
"Exactly (only) one sentence on this page is false." or vice versa "Exactly all other 99 remaining sentences must be
true. But 99 sentences contradicting each other can´t be true at the same time.
If only sentence #2 was correct, this would mean: "Exactly 98 sentences must be true".
If only sentence #3 was correct, this would mean: "Exactly 97 sentences must be true".
...
If only sentence #24 was correct, this would mean: "Exactly 76 sentences must be true".
...
If only sentence #99 was correct, this would mean: "
Exactly 99 sentences on this page are false." or vice versa "Exactly 1 sentence on this page must be true (namely sentence #99 itself)
If only sentence #100 was correct, this would mean: "Exactly no sentence at all on that page can be true, because the sentence maintains "Exactly 100 are false"
Therefore only sentence #99 can be correct.
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The riddle was somewhat confusing to myself, too, when I tried to explain it
.