Why is empty product defined to be $1$?
125957
What is the product of the empty set?
118824
What is the complement of empty set?
132239
Why is the solution single-valued?
130418
Is ${\{\emptyset,\{\emptyset\},\{\{\emptyset\}\},\{\{\{\emptyset\}\}\},...\}} $ a set?
36721
Is "The empty set is a subset of any set" a convention?
10313
Why Multiplication of zero by any number is zero?
153294
What is the infinite product of (primes^2+1)/(primes^2-1)?
132692
Nonempty set mapped to $\emptyset$ and vice-versa
36881
Empty intersection and empty union
139740
The infinite product of the sines of all positive integers is zero
108661
In php, is 0 treated as empty?
858
Is $\{\emptyset\}$ a subset of $\{\{\emptyset\}\}$?
8072
Why Is a Function Defined As Having Only One Y-Value Output?
115506
What's wrong with this demonstration? (1 = -1)
115514
Is the product $\prod_{k=1}^\infty \frac{2^k-1}{2^k}$ necessarily $0$?
95937
Why aren't all prime subfields equal to {0,1}?
142888
Why, intuitively, is the order reversed when taking the transpose of the product?