Sign In
Ask Question
Adam Frye
Computers & Technology
26 September, 02:51
What are Armstrong's Axioms?
+1
Answers (
1
)
Emmanuel Stanley
26 September, 03:15
0
Armstrong's Axioms:
1. - Axiom of reflexivity
2. - Axiom of augmentation
3. - Axiom of transitivity
From these three axioms, the following are derived:
- Proyectivity or union
- Additivity or decomposition
- Pseudotransitivity
Explanation:
Be X, Y, W, Z are sets, then
1. - Axiom of reflexivity : ∀ Y ⊆ X ⇒ X → Y
2. - Axiom of augmentation : X →Y ⇒ ZX → ZY
3. - Axiom of transitivity: X → Y and Y → Z ⇒ X → Z
- Proyectivity or union: X → Y and X → Z ⇒ X → YZ
- Additivity or decomposition: X → Y and Z ⊆ Y ⇒ X → Z
- Pseudotransitivity: X → Y and WY → Z ⇒ WX → Z
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“What are Armstrong's Axioms? ...”
in 📗 Computers & Technology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Which of the following are true statements? Unix filenames are case sensitive, meaning that upper case a lowercase are treated differently Unix filenames cannot be longer than 8 characters Unix filenames cannot contain spaces or punctuation
Answers (1)
What are the only things that can be declared in an interface?
Answers (1)
To move a custom tab stop, drag the tab marker to the desired location on the ruler. True False
Answers (1)
What resources can be shared over a computer network?
Answers (2)
Consider the following method: public double doubleVal (double x) { return x * 2; } The following code segment calls the method doubleVal: Double val = 6.5; System. out. println (doubleVal (val)); What is printed when the code segment is executed?
Answers (1)
New Questions in Computers & Technology
Inflation is defined as a general increase in the prices for all goods and services. What metaphor illustrates the concept of inflation? A. Balloon B. Vacuum C. Toilet
Answers (2)
As software becomes more pervasive, risks to the public (due to faulty programs) become an increasingly significant concern.
Answers (1)
You have local administrative rights to your computer running Windows 7. You cannot find some of the operating system files on your system volume. What can you do to make them appear?
Answers (1)
Apakah ada yang bisa menjelaskan potongan source code ini? string fuse (char kata1[100], char kata2[100]) { char jawaban[100]; int ssr, j=0; if (strlen (kata1) >=strlen (kata2)) { ssr = strlen (kata1); }else{ssr = strlen (kata2); }; for (int i=0;
Answers (1)
Match the job skills with the correct job role. 1.) Neil directs medical services in a managed care organization. 2.) Rita compiles patient records in a medical facility. 3.
Answers (1)
Home
»
Computers & Technology
» What are Armstrong's Axioms?
Sign In
Sign Up
Forgot Password?