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.
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[@shyam7833]

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.

[@learninginstudentscafe7284]

Thanks for Easy explaination of this topic

[@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.

[@shobhitagrawal4901]

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

[@booky6149]

@Rahul Yadav Speak the language on what the speaker speaks. Congrats! You have learned one common sense.

[@deshbhakt992]

@@booky6149 dont try to be oversmart by speaking english rather than own language he clearly comment on guy( which is indian ) not on speaker so theres nothing point to speak speakers language !!

[@kobbariraja]

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[@BadiArt]

the audacity to think you've said something that is common sense, smh @@booky6149

[@CharmingMoments09]

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

[@aarjitlamsal2768]

Thanks I was confused and now I understand

[@nicholaspratte3170]

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

[@chetankembhavi4810]

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

[@AbhishekThakur-fk7px]

Thank you so much sir.

[@kandiumamaheswarreddy6373]

Thank you very much sir

[@RaviTeja-jf1ri]

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

[@sameershrestha6872]

Next video on function and it’s types please 🙏

[@ahmetkarakartal9563]

thank you so much

[@learninginstudentscafe7284]

Excellent

[@user-yz3hc8sm6l]

Tqvm sir🙏🙏🙏

[@kainaatmakhani6550]

Excellent.

[@basilbrush7878]

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?"

[@amarnath1828]

Dude thank u man

[@AliHaider-id6ms]

Very well explained sir👍

[@SunGamer094]

Wow understood nothing, thanks 😊

[@cristinaluvu2]

Lmfao😂😂😂 me rn

[@Alstyne]

😂

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😂😂

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Ahaaha :”D 💔

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Same here 😂

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[@vritra-kidzone2673]

It would be good if you drop link of playlist(discerete mathematics) too ❣️ Thank you for discrete too

[@nesoacademy]

Discrete Math: goo.gl/7VUE7z

[@freeblade5296]

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)

[@fernandodavemwels.5837]

For someone like you

[@DanielDaniel-ce1vg]

Programmers do

[@nithinnair5927]

It's matrix (to keep distracting you from making money)

[@couragesetsoafia9982]

@@DanielDaniel-ce1vgspeak for yourself bro 🥲

[@bookmarked01]

Phones, lights, electricity, cars, any transport, network everything needs this mathematics. Just because you are bad at the subject doesn't make it irrelevant to the world. With your primate-like comment you are being irrelevant to others.

[@user-ow1jj3gf2h]

very impressive

[@qoutesspace]

Good job

[@md.shahidulislam7432]

It's hard for me to understand 😭

[@taojiang7259]

very nice

[@rockon6725]

Tq u sir

[@nirjala8962]

❤ u sir

[@mugunthanvin1331]

A and B be any non empty sets ah?

[@aljonarddelacruz1074]

Damn Moco!

[@SafiKhanCreation]

Again very confused in Last

[@Boufonamong]

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

[@waqarrao8725]

Great

[@ariee101]

Sir why the number of Relations on a set A with n elements P[(A×A)] is 2 to the power of n^2 not 2^n

[@kamallohana9084]

these are not relations these are number of elements

[@tangenikufuna524]

The last part is killing us 😂

[@continnum6540]

❤❤❤

[@Ayaanmuxic]

3 gante se exam aur abhi padhna start kiya hu (year back ka exam h)😭

[@user-sl7kd4ej3h]

Wow you’re very good sir 👏👏

[@kaelplaysroblox1963]

Thank you very much i understood nothing ☺️❤

[@g_r0v]

Hi

[@eternalstudy5251]

4 November !!!

[@kritichopra7819]

Didn't understand anything

[@user-fm5cf7ro5h]

Wow

[@shawz7010]

Why is (4,2) not in where R is relation where a divides b?

[@Gemini_7531]

the first element divides the second element, therefore 4 would not divide 2 ie. - (3,6) six can be divided by 3

[@shawz7010]

@@Gemini_7531 thanks......i didn't get it in first look.Understood later.

[@foodthink1592]

4 do not completely divides 2

[@randy12.02]

Who the rass knows skunt

[@nirjala8962]

It is like 2 divided by 4.... Not 4 divided by 2

[@arturocisnerosgomez4956]

Anda boleh memilih untuk salah satu daripada hadiah di atas

[@mashroom2927]

The whole set thing confuses me, it’s silly and easy but never understandable. How? Don’t ask me

[@manoj686]

111 viewer

[@aqsashahid-qt4sq]

ap ki voice sharum ki sketch book jessi he

[@habibaahmed-cu3rp]

I Didn't understand thing 😢😢😢

[@o_18_adityadeshmukh15]

poor sequence

[@potipherkimtai2370]

P

[@sadnanjuhib]

Naga shrine

[@user-em6vt7cr3z]

Thop reyyy Nothing understanding

[@liufeng2095]

Great Ppt but👳🏾‍♂️

[@jagramanterbedy7898]

Dhhdid

[@potipherkimtai2370]

P