The number of proper subset of {1,2,3,4} is

Related MCQs

• Let (A, ≤) be a poset. A subset of A is known as ------if every pair of elements in the subset are related.
• A ------ is a poset (A, ≤) in which every subset {a, b} of A, has a least upper bound and a greatest lower bound.
• Number of proper subsets of a set of order three
• In the class of 55 students the number ofstudying different subjects are as given below: Maths 23, Physics 24, chemistry 19, maths+physics 12, maths+chemistry 9, Physics +chemistry 7, all three subjects 4. Find the number of students who have taken atleast 1 subject?
• Let A = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16} and consider the divides relation on A. Let C denote the length of the maximal chain, M the number of maximal elements, and m the number of minimal elements. Which is true?
• Cardinality of a set is number of element of the set.
• Set A has 3 elements, set B has 6 elements, then the minimum number of elements in A U B is ….
• Set A has 3 elements, set B has 6 elements, then the minimum number of elements in A U B is ….
• In a survey of 60 people , it was found that: 25 read Newsweek magzine. 26 read Time 26 read Fortune 9 read both newsweek and fortune 11 read both Newsweek and Time 8 read both Time and Fortune 3 read all 3 magzines. 1. Find the number of people who read at least one of the three magzines
• In above Q.78 Find the number of people who read exactly 1 magzine.