THE UNCOMMON ORIGINS OF SOME COMMON EXPRESSIONS - As sure as Eggs is Eggs!

In this series I will write the origins of some of the most common expressions of phrases that we use in ours day to day life. The facts given here are extracts from a book by the same name that I got long time back from Reader's Digest. I wholeheartedly thank the author 'John Kahn' for this amazing book of trivia

AS SURE AS EGGS IS EGGS

How did this peculiar way of saying 'without a doubt' originate? In all probability, eggs is here a deliberately comic distortion of x.

In algebra, a basic equation is that x always equals x. If anything is accepted as true by all mathematicians and logicians, it is just that - that x = x. So if you want to give a guarantee of the accuracy of a prediction, for instance, you might emphasize that it is as sure as x is x - or as eggs is eggs.