Is jquery a dynamic redefinition of javascript?

Learn JavaScript before learning JQuery?

I have read that thread and I still don't find any points convincing me that Javascript is a must-learn-before-jquery thing.

I think jquery is far more than just a javascript library, I would like to call it a redefinition of the dynamic language, the new javascript instead. The library writers clearly made the greatest hit here to change old JavaScript's face almost completely. Javascript and Jquery are co-existing because Jquery is the javascript library and the fact that people support learning JS first before jquery is likely because they've been client side coders long before the jquery was out, WHICH CURRENTLY EASES THEIR INVESTIGATIONS INTO THE LANGUAGE FAR BETTER, psychologically, they certainly then say "Oh yes, procedural methodologies work greater".

For points concerning writing a function call via mouse/keyboard events, I still agree that javascript structures are preserved and need learning. But does this really make a big difference whether or not learning jquery first should be more beneficial at all ? Ex:

function something()
{
   //jquery code
}
////
<input type="..." onclick="something();"/>

Advice and corrections are required. Thank you so very much.