Finite set of infinite sets are equal, and the universe is relatively empty sets (Sets) represents a group of objects, whether a person, animal, object, or mathematical expressions. This can identify group members. And that the group members "Members of the Set" to write the set to write the set is used instead of letter writing sets. And can be written 2 1. distributions of sets A = {1, for example, 2, 3, 4, 5} B = {a, E, I, o, u} C = {..., - 2. , -1,0,1,2, ...} 2. Tell a condition of membership in the set, for example, A = {x | x is a positive integer that is less than or equal to 5} B = {x | x is a vowel in English} C = {x | x is an integer} symbols. Using the set of numbers are as follows: I- the set of negative integers Q- the set of rational numbers is negative I + the set of positive integers Q + denote the set of rational numbers is positive I. The set of integers Q the set of rational numbers N. The set of numbers R the set of real numbers, finite definition of finite sets is set to specify the number of members set the example, A = {1, 2, 3, 4, 5} has five members, B = {a,. e, i, o, u} There are five members of an infinite set of infinite sets is a set that is not finite. Or a subset of Member countless example, C = {..., - 2, -1,0,1,2, ...} sets the same set A and set B are equal sets. Well, if every element of a set A is a subset of B and every element of the set B is a member of the set A can be denoted by the symbol A = B For example, A = {1, 2, 3,. 4, 5} B = {x | x is a numeral that is less than or equal to 5} ∴ A = B empty empty set is the set with no members. Or a number of members set to zero. Can be denoted by the symbol {} or Ø For example, A = {x | x is an integer and 1 <x <2} ∴ A = Ø B = {x | x is a positive integer, and x + 1 = 0} ∴ Allaah. B = Ø Since we can tell you the number of empty, so empty set is finite universe relative relative universe is the set that contains all members of what we want to study. Can be denoted by the symbol u For example, If we study the integer U = {..., - 2, -1,0,1,2, ...} or U = {x | x is an integer.} subset. Power sets and subsets definitions set A is a subset of set B if every element of a set A is a subset of B and is denoted by the symbol A ⊂B Example 1 A = {1, 2,. 3} B = {1, 2, 3, 4, 5} ∴ A ⊂ B Example 2 C = {x | x = {1,2,3} is a positive integer, ...} D = {x | x. = {...} is odd, - 3, -1,1,3, ...} ∴. CD E = {0,1,2} Example 3 F = {2,1,0} ∴ E ⊂ F and F ⊂ E of Example 3 is that E ⊂ F and F ⊂ E and E = F subset. McCoy set A is a subset genuine subset of B if A ⊂ B and A ≠ B of subsets If A is a set with n members already members of a subset of a subset A has 2n sets, and this number is chopped. McCoy set 2n - 1 set Power set of definitions. Power subset of the set A is the set whose members are a subset of the set A and denoted by the symbol. P (A) Example 1 A = Ø subset of A is Ø ∴ P (A) = {Ø} Example 2 B = {1} subset of B = Ø, {1} ∴ P (B). = {Ø, {1}} Example 3 C = {1,2} is a subset of C Ø, {1}, {2}, {1,2} ∴ P (C) = {Ø, {1. }, {2}, {1,2}} Writing the set diagram. Intersection complement and variances • Writing diagram denote the set of writing a diagram of the set. We wrote off a rectangle instead of a relative universe. And a closed circle Or ovals represent a subset of the universe relative. As we call the diagram above, the "Venn Diagram - Euler" (Venn-Euler Diagram) • Union (Union) definition of a set A Union to set B is the set whose members are members of the Set A. or set B, or both A and B can be denoted by the symbol A ∪ B = {1,2,3} A example B = {3,4,5} = {1,2,3,4 ∴ A ∪ B. , 5} • Intersection (Intersection) definitions set A set B is the set intersection whose members are members of the Set A and Set B is denoted by the symbol A ∩ B = {1,2,3} A example B = {3,. 4,5} = {3} ∴ A ∩ B • Com implemented (Complements) A set of definitions, if any, in the relative universe U and the complement of a set A is a subset of members that are members of the U, however. Not a member of A is denoted by the symbol. A ' U = {1,2,3,4,5}, for example, A = {1,2,3} ∴ A '= {4,5} • Variance (Difference) definition if set A and B are set. Any fluctuations in the relative u, then the difference between the sets A and B is the set whose members are members of the set A, but not a member of set B can be written with the A - B , for example, A = {1,2. , 3} B = {3,4,5} ∴ A - B = {1,2} finite number • If A is finite, then. Write the number of members of a set A with n (A) • If A and B are finite in the universe relative U, then n (A ∪) = n (A) + n (B) - n (A ∩ B). n (A - B) = n (A) - n (A ∩ B) n (B - A) = n (B) - n (A ∩ B) • If A, B and C are finite in the universe. Relative U, then n (A ∪ B ∪ C) = n (A) + n (B) + n (C) - n (A ∩ B) - n (A ∩ C) - n (B ∩ C) + n (. A ∩ B ∩C)
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