2 ms·
Ah, that's different: Fermat's Last Theorem was called a theorem because Fermat claimed to have proved it. Taking him at his word, it's been a theorem since 163
by hugh3 16y ago
Ah, that's different: Fermat's Last Theorem was called a theorem because Fermat claimed to have proved it. Taking him at his word, it's been a theorem since 1637.