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Term
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Term
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1. verbal description
2. Listing using braces { }
3. Set Builder notation: (x|x>2} |
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ex: (x|x>2}
"The set of all x such that x is greater than 2" |
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| Symbol "€" (or € with slash through it) |
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| Element of (or NOT an element of) |
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| "=" or (or = with slash through it) |
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Definition
Equal to (or NOT equal to)
same ELEMENT, may differ in number of occurances |
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Definition
Equivalent to
1-1 Correspondance, same # of elements |
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| C or (or C with slash through it) |
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| Subset Every element of first set IS ALSO an element of second set |
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| C or (or C with slash through it) |
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| Proper subset Somethint is included in the SECOND set that is NOT in the first set |
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23 = 8 total subsets
2=base
3=# of elements |
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the set comprised of all elements being considered
(the box around the circles) |
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| if it is EMPTY OR you can count or list/ it ends |
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| two sets with NO COMMON elements |
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| the set that consists of ALL elements belonging to BOTH set A and set B. |
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| Intersection "upside down U" |
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| the set of all elements common to set A and set B |
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| Compliment "represented by line over set name" |
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Definition
| all elements NOT in the set |
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| Difference of Sets (relative complement) |
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| the set of all elements in set A that are NOT in set B |
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| Cartesian Product of sets |
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AxB "A crosses B"
set of all ordered pairs from AxB |
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| grouping by "hash" marks, later improved to include grouping by 5s |
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| Egyptian Numeration System |
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| grouing, additive, multiplicative, subtractive,, positional, many symbols |
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| Babylonian Nymeration System |
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2 numerals
Base 60
Positional, additive |
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3 symbols, verticle placement
Base 20
first system to use "zero" |
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| Hindu-Arabic Numeration System |
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Used today, 10 "digits" (0,1,2,3,4,5,6,7,8,9)
Grouping by 10s |
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| Expanded form (Expanded Notation) |
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