Nemyslim, ze ako pomocny vypocet :-) Fermat o svojej vete tvrdil, ze:

It is impossible to separate a cube into two cubes, or a fourth power into two fourth powers, or in general, any power higher than the second, into two like powers. I have discovered a truly marvellous proof of this, which this margin is too narrow to contain.

.. a zjavne sa mylil, kedze to Andrew Wiles o 350 rokov dokazoval na niekolko sto stran pomocou modernej matematiky. Zvysok si uz domyslis, aj ked mozno je to vtipne len matematikom :)