Document
Document

Chapter 2 sec 1
Chapter 2 sec 1

COMPARING SETS Definition: EQUALITY OF 2 SETS Two sets A
COMPARING SETS Definition: EQUALITY OF 2 SETS Two sets A

COMPARING SETS Definition: EQUALITY OF 2 SETS Two sets A
COMPARING SETS Definition: EQUALITY OF 2 SETS Two sets A

IGCSE Mathematics – Sets and set notation
IGCSE Mathematics – Sets and set notation

Set Theory II
Set Theory II

Page 1 of 4 Math 3336 Section 2.1 Sets • Definition of sets
Page 1 of 4 Math 3336 Section 2.1 Sets • Definition of sets

Sections 2.1/2.2: Sets
Sections 2.1/2.2: Sets

Set and Set Operations - Arizona State University
Set and Set Operations - Arizona State University

Sets
Sets

... Proper subset: A ⊂ B – If A is a subset of B and there is at least one element of B that is not contained in A, the A is a proper subset of B. How to find the number of subsets: If a set contains n elements, then if contains 2n subsets. How to find the number of proper subsets: If a set contains n e ...

Naive set theory

Naive set theory is one of several theories of sets used in the discussion of the foundations of mathematics. Unlike axiomatic set theories, which are defined using a formal logic, naive set theory is defined informally, in natural language. It describes the aspects of mathematical sets familiar in discrete mathematics (for example Venn diagrams and symbolic reasoning about their Boolean algebra), and suffices for the everyday usage of set theory concepts in contemporary mathematics.Sets are of great importance in mathematics; in fact, in modern formal treatments, most mathematical objects (numbers, relations, functions, etc.) are defined in terms of sets. Naive set theory can be seen as a stepping-stone to more formal treatments, and suffices for many purposes.