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Example of sets having both reflexive and irreflexive relation?
Wiki User
∙ 12y ago
when x is not an element of the set, it is both reflexive and irreflexive by vacuos truth
Wiki User
∙ 12y ago
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Suppose there are two cubes with the first cube having a side of h and the second cube having a side of 5h What is the relation of the volume of the first cube to the volume of the second?
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Describe the differences in meaning between the terms relation and relation schema?
Relational Schema refers to meta-data elements which are used to describe structures and constraints of data representing a particular domain. Whereas a relation is a property or predicate that ranges over more than one argument Here's some translation from "Relational Algebra" to SQL terminology: * "Relation" = Table. * "Relation Schema" = Table definition. So for example, the "schema" for the Person "relation" is: Person(FirstName, LastName, Age, Gender, Address) Also in relational Algebra, a "tuple" is a table row, and an "attribute" is a table column.Mathematician define a relation to be subset of cartesian product list of domains.In daabase relation is a set of entities with similar attributes.In other way we can consider a relation as a table and it's rows as entities, and table's columns as attributes.Concept of relation corresponds to programming language notion of variable.relational Schema corresponds to the programming language notion of type definition.It is the logical design of database.e.g. for a relation account having attributes account_number, branch_name and balance, relational schema is specified as -Account_schema= (account_number, branch_name, balance)
A example of a finite amount of time?
An example of a finite amount of time is having a short time frame to complete a task.
What is an antonym and example?
An antonym is a noun and is a word having a meaning opposite to that of another word. For example, the antonym (opposite) of the word 'old' is 'young'.
Can you have a negative position while having a positive velocity?
Certainly. For example, a pendulum at its left-most position.
What is the possible no of reflexive relations on a set of 5 elements?
The total no. of reflexive relations on a set A having n elements is 2^n(n-1).Thus, the required no. is 2^20 = 1 048 576
How do senses keep us from harms way?
The senses protect us by causing an almost immediate reflexive reaction to things that might harm us without our having to think about when delay might cause harm, or worse harm. As an example, when you touch something hot, the sense of touch causes a reflexive reaction to pain and makes us jerk away without havig to think about it.
Cricketer having relation with Indian Acteres?
yes
What are the advantages and diadvantages of our young men having the relation with people belong to other creeds?
what are the advantage and disadvantages of our young man having sound relation with the people belonging to other
Example of multilevel inheritance program in java having HAS-A relation?
Just create a class that has two fields of object type. For example, to store data about a person, you might store a name (String object) and a birth date (Date or Calendar object).
What does indentified?
Having the same effort or purpose. To consider as the same in relation.
What is the definition of interrelated?
Having a mutual or reciprocal relation or parallelism; correlative.
Why is educate a reflexive rather than a transitive verb?
The verb "educate" is reflexive because it involves the idea of self-improvement or self-development as the direct object of the verb. When you say "I educate myself," the action of educating is directed back to the same subject. In contrast, a transitive verb would involve directing the action towards something or someone else, such as "I teach students."
What is the medical term meaning state of having a fixed relation to a pathogen?
Specificity
What is the correct spelling of baldy?
In relation to having no hair, baldy is the correct spelling.
How do you Derive The Number of reflexive relation of a Set 's' having n elements?
make a table as I did below for the set {a,b,c} with 3 elements. A table with all n elements will represent all the possible relations on that set of n elements. We can use the table to find all types of relations, transitive, symmetric etc. | a | b | c | --+---+---+---+ a | * | | | b | | * | | c | | | * | The total number of relations is 2^(n^2) because for each a or b we can include or not include it so there are 2 possibilities and there are n^2 elements so 2^(n^2) total relations. A relation is reflexive if contains all pairs of the form {x,x) for any x in the set. So this is the diagonal of your box. THESE ARE FIXED! No, in reflexive relation we still can decide to include or not include any of the other elements. So we have n diagonal elements that are fixed and we subtract that from n^2 so we have 2^(n^2-n) If you do the same thing for symmetric relations you will get 2^(n(n+1)/2). We get this by picking all the squares on the diagonal and all the ones above it too.
What is the relation between acid reflux and heart problems?
The relation between acid reflux and heart problems is that they both feel like you are having a heart attack.
