Of course...
I don't think I need to explain what the purpose is of a emergency fund...
Technically one can invest those funds with the current %4-5 interest, however for me, its the comfort of knowing I have the cash at hand.
So technically, not needing the comfort of the cash on hand, an emergency fund can also be dumping a coupla hundred dollars into the s&p500 every month or two and it will grow even more than 4/5%.
Then, if CH"V money is needed, a loan can be taken.
Just sayin.