Early Mornings Delight

The light was beautiful again this morning and this Jockey Cup lily was looking beautiful with it's wonderful pink and red colours. It got up to 28c at one stage then the predicted southerly hit around lunch time just as the weather men said and the temperature dropped rather fast after that!

The saying the "as sure as eggs' entered my mind when it hit. A saying I haven't said or even heard for sometime. So I thought I would look up where it may have come from and when. All I could find was ... a saying 'As Sure as Eggs is Eggs'. 

This is all I could find out about the saying:
Brewer says "it is suggested that this is a corruption of the logician's formula 'x is x.' " (no date).

Note: Does the use of 'is,' instead of 'are' strengthen this contention?
Goes on to mention the 'apples' (1874) and 'Gloucestershire' equivalents.
The latter goes: 'As sure as God's in Gloucestershire.'


The Oxford Dictionary of Phrase and Fable just says "recorded from the late 17th century." 


The colloquial expression as sure as eggs is eggs, meaning absolutely certain, possibly comes from the mathematical expression x = x.

Without any doubt... is the meaning I know it by and it was interesting looking it up to see what I could find. Someone else may have a better answer and I would love to hear about it~