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: Th. Closed under union, concatenation, and Kleene closure. ;
: Th. Closed under complementation: If L is regular, then is regular. ;
: Th. Intersection: .
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What is the study of the measurements properties and relationships of wuantities and sets using numbers and symbols?
Mathematics
Does a regular hexagon have perpendicular sides?
No, it does have 3 sets of parallel sides though.
Are equivalent sets equal sets why?
No, because equivalent sets are sets that have the SAME cardinality but equal sets are sets that all their elements are precisely the SAME. example: A={a,b,c} and B={1,2,3} equivalent sets C={1,2,3} and D={1,2,3} equal sets
What property of polynomial subtraction says hat the difference of two polynomials is always a polynomial?
Closure
Sets of Pythagorean triples?
3,4,5 1,2,3 these are sets of pythagorean triples
How is closure used in math?
In the context of sets, closure implies that the limiting value of the extremum of the set is itself an element of the set.
Why empty set is a set?
The concept of closure: If A and B are sets the intersection of sets is a set. Then if the intersection of two sets is a set and that set could be empty but still a set. The same for union, a set A union set Null is a set by closure,and is the set A.
Does a mixture have one or two sets of chemical properties?
it has 2 sets of chemical properties
What are the properties of an Emergency bandage?
primary dressing, pressure applicator, secondary dressing, and a simple closure
What are the 4 different types of properties of addition?
They are closure, associativity, identity and invertibility. A set with addition defined on its elements which meets the above 4 properties becomes a Group.
How many sets of properties are there in a river?
one set
Are closure and interiors of connected sets always connected?
Are the closures and interiors of connected sets always connected, or the set of interior points? The Answer: No. There isn't always a connection inside connected sets.
How is a cardigan sweater different from a regular sweater?
A cardigan sweater does not have a hood and it has buttons in the front as a closure. Regular sweaters can have buttons or zippers and can also have a hood.
Study of sets of points and their shapes sizes and properties?
geometry
How many sets of properties does the water in one river have?
19
Do octagonhave2 sets of parallel lines?
A regular octagon has 4 sets of parallel sides.
What are the properties of mathematical system to be a commutative group?
Closure, an identity element, inverse elements, associative property, commutative property
