please i need your help, this question is from my midterm exam ineed solution very quick, it is due next week!
"your finger can provide an (n-1) multiplication table in base n, 2<=n<=10 as follow:
hold n fingers in front of you. to multiply (n-1) by k in base n, lower the kth finger from the...
A lower bound of a non-empty subset A of R is an element d in R with d <= a for all a A.
An element m in R is a greatest lower bound or infimum of A if
m is a lower bound of A and if d is an upper bound of A then m >= d.