![subject](/tpl/images/cats/mat.png)
Mathematics, 03.06.2021 18:00 Kassi07
Let P(x, y) be a binary predicate where the type of x is A and the type of y is B. We define the projection π1(P) to be the unary predicate on A defined as follows: π1(P)(x) is true if and only if there exists an element y of B such that P(x, y) is true. Similarly, π2(P) is the unary predicate on B defined so that π2(P)(y) is true if and only if there exists an element x of A such that P(x, y) is true.
(a) Let A = B = {0, 1, 2, 3} and define P(z, y) to mean "x < y". Describe π1 (P) and π2(P) as both predicates and relations
(b) What can you say about the predicate P if you know that Ti(P) and m(P) are each always false? What if they are each always true?
(c) (uses Java) Suppose you are given a boolean method isInP(int x, int y) where each of z and y are restricted to the range from 0 through LENCTH 1. Write boolean methods that will return the value of the predicates π1(P) and 7T2(P), given appropriate input.
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?
Answers: 1
You know the right answer?
Let P(x, y) be a binary predicate where the type of x is A and the type of y is B. We define the pro...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 04:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 04:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 30.10.2019 04:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 04:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 04:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 04:31
![question](/tpl/images/cats/istoriya.png)
History, 30.10.2019 04:31
![question](/tpl/images/cats/himiya.png)
Chemistry, 30.10.2019 04:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 30.10.2019 04:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 04:31