Yes, Euler demonstrated, as G. Polya illustratively illuminates in his:

" Induction and Analogy in Mathematics; Vol. 1 of Mathematics and Plausible Reasoning ".

Polya gives an English translation of Euler's writing in Ch. 6.

It can be read with very little prior knowledge.

Yes, Euler demonstrated, as G. Pólya illustratively illuminates in his:

" Induction and Analogy in Mathematics; Vol. 1 of Mathematics and Plausible Reasoning".

Pólya gives an English translation of Euler's writing in Ch. 6.

It can be read with very little prior knowledge.