It is an advance on this when Heraclitus 2 opposes to the eyes and ears which are bad witnesses " for such as understand not their language " a common something which we would do well to follow; or again when in the incommensurability of the diagonal and side of a square the Pythagoreans stumbled upon what was clearly neither thing nor image of sense, but yet was endowed with meaning, and henceforth were increasingly at home with symbol and formula.
- There is no general test for the incommensurability of the general infinite continued fraction.
The Incommensurability of Infinite Continued Fractions.
How would you define incommensurability? Add your definition here.