Introduction to Relations

Discrete Mathematics: Introduction to Relations
Topics discussed:
1) The definition of Relations.
2) The notation for Relations.
3) The example of Relations between two sets.
4) Relation from a set to itself.
5) Number of relations on a set with n elements.

Music:
Axol x Alex Skrindo - You [NCS Release]

#DiscreteMathematicsByNeso #DiscreteMaths #Relations

[amber]

Tnk you i was confused and now im more confused

[shyam]

00:58 Binary relation is a subset of the Cartesian product of two sets

01:56 The relation R is defined as the set of ordered pairs where the elements are equal to each other.

02:54 Relation R is created with ordered pairs where the first element is equal to the second element.

03:52 Relation R represents a mapping from a set A to itself.

04:50 The relation R consists of ordered pairs where the first element divides the second element.

05:48 The number of relations on a set with n elements can be found by listing down all the subsets of A x A.

06:46 The number of relations on a set A with n elements is equal to 2 to the power n square.

07:39 The number of relations on a set A with n elements is 2 to the power n square.

[shobhitagrawal]

Sir, please Complete Data Structures 🙏 I have started studying from the playlist and its important from my semester point of view

[freeblade]

Can u pl explain the purpose of math in this world cuz we don't need these super hard lessons In life ( THE WORLD IS STUPID AS A GOAT)

[krisretro]

Thank you Sir. I watched this video a while back to understand relations, now I am watching this again to revise before an exam.

[aarjitlamsal]

Thanks I was confused and now I understand

[vritra-kidzone]

It would be good if you drop link of playlist(discerete mathematics) too

❣️ Thank you for discrete too

[RealAXork]

If I am not mistaken, in my university we defined a relation specifically as a non-empty subset of AxB. I wonder why this is? I cannot find this definition elsewhere.

[nicholaspratte]

You are such an excellent teacher, keep up the good work!

[CharmingMoments]

Thank you Very much Sir
Your Videos are very helpful
Great explanation Sir

[chetankembhavi]

Let A={1, 2, 3, 4} and let R be the releation on A defined by xRy if and onlyif " x divides y" written x/y.
1) write down R as a set of ordered pairs.
2) draw digraph of R.
3) determine the indegree and outdegree vertices of digraph. Solve this problem please send me answer

[themiditegamer]

Thank you
To be honest the last part really wasn't so easy to understand, but I mixed it with a bit of Google and I'm good to go now.

[RaviTeja-jfri]

Sir could u plz explain about the Newtown- Raphson method 🙏... There is an exam on this topic

[learninginstudentscafe]

Thanks for Easy explaination of this topic

[sameershrestha]

Next video on function and it’s types please 🙏

[obeymheresi]

Thank you very much sir it's very clear🎉

[kaelszzz]

Thank you very much i understood nothing ☺️❤

[MuhammadAsgharAsgharali-rbny]

If there is no condition in relation in this situation what we do?

[Boufonamong]

You are the Saad guru of maths don't we think so yes?

[basilbrush]

I think this divisibility needs to be clearly defined. When you say "a divides b", do you mean "b can be divided by a, evenly?"