Of Art and mathematics paradoxes : true AND/OR false?

This is the �irst sentence of this article� Clearly the sentence above is true (not highly informative but true). Contrast this to the next sentence, below: This is the first sentence of this article how the second statement, though identical to the first, is clearly false. Such sentences that speak about themselves are called self-referential sentences, because they are, in a way, looking at themselves in the mirror and describing themselves