1) 2 Books of 3 2) Book 3 Run of 4 3) Run of 7 4) 2 Books of 4 5) Run of 8 6) Book 4 Run of 4 7) Run of 9 8) Run 5 Book 3 9) Run of 10
No. Let A = {a} (a singleton set) then P(A) = {a, 0}where 0 is the null (empty) set.
The sun rises in the east, and sets in the west, no matter where you are!
when the sun/moon appears to slowly meet the horizon and disappear
Speaking in a grammatical sense, one sets a precedent, not a precedence.
An empty set is considered a finite set because it contains zero (0) elements and zero is a finite number.