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Discrete Mathematics and Combinatorics by T. Sengadir

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List of Symbols

Chapter 1

Implies
Implies and implied by
< Less than
Less than or equal to
> Greater than
Greater than or equal to

Chapter 2

C The set of complex numbers
The set of real numbers
Q The set of rational numbers
Z The set of integers
The set of natural numbers
Is an element of
Is a subset of
Union
Intersection
[a, b] {x ∈ ℝ : axb}
(a, b) {x ∈ ℝ : a < x < b}
(a, b] {x ∈ ℝ : a < xb}
[a, b) {x ∈ ℝ : ax < b}
(r, ∞) {x ∈ ℝ : r < x}
[r, ∞) {x ∈ ℝ : rx}
(−∞, r) {x ∈ ℝ : x < r}
(−∞, r] {x ∈ ℝ : xr}
P(A) The power set of A = The set of all subsets of A
a R b a is related to b under the relation R
[x] The equivalence class of x under the equivalence ...

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