Set Notation And Number Flashcards
What is the symbol of an empty set
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What is the symbol for element
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What does element mean
Is part of a set
What does a subset mean
If a set contains elements that are in another set it’s called a subset
What is the notation of a subset
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If an element is found in one of two or more sets what’s the notation in full
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If an element is found in all of two or more sets what’s the notation in full
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What do the square brackets mean
greater or less than and equal to
What do the curved brackets mean
Just greater than or less than
Give me the full notation for when x is less than 2 but greatr than or equal to -2
[-2,2) = {x:-2<=x<2}
What is the symbol for natural number
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What does a natural number mean
Any number that is greater than 0
What is Z the notation for
A set of integers
Draw the notation for a positive set of integers, a negative set of integers and a positive set of integers including 0
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What is the symbol for a rational number
What does a rational number mean
{a/b: a E z, b E n}
What is an irrational number
A number that can’t be written as a fraction
What is a real number
A real number contains all rational and irrational numbers
What is the symbol for implies
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If a implies b what would the opposite of this be
A’ implies b’
What is the symbol for therefore and because
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What is the symbol for if and only if
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What is the notation for always equivalent to
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