“Disprove” Fermat's Last Theorem
J

Actually, Fermat did make quite a blunder: It's actually wrong for any b, c or n if a is 1:

   1^3 + 4^3 = 5^3
1
   1^4 + 5^4 = 11^4
1
   1^9 + 3^9 = 42^9
1



   Maybe just maybe, Fermat's precedence rules weren't strictly right to left.