SOLUTION: Determine the total number of proper subsets of the set of letters from the English Alphabet (a,b,c,...,j)

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Question 1146079: Determine the total number of proper subsets of the set of letters from the English Alphabet (a,b,c,...,j)
Found 2 solutions by math_helper, ikleyn:
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
There are +2%5En+-+1+ proper subsets of a set of n elements.
Plug in n=26
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EDIT 11/25/19:
Oh yes, I missed the fact that the letters terminate at 'j' I thought it spanned the entire alphabet. Sorry about that, n is obviously less than 26.

Answer by ikleyn(52793) About Me  (Show Source):
You can put this solution on YOUR website!
. 

There are +2%5En+-+1+ proper subsets of a set of n elements.


Count how many letters "n" from "a" to "j" are there in your set and plug in to the formula.