Semigroup in Group Theory | Discrete Mathematics

Semigroup is an algebraic structure consisting of a set together with an associative binary operation.

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[AlokKumar-owuq]

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[rohitsinghsde]

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[ravirajkudal]

Bro you don't know how much you helped me in study... Thanks for Everything🙏🙏, keep uploading

[praveen_kr]

(Z, ÷) does not follow closure property as well as associative property.

[muhammetuysalilematematik]

S=<a, b | If aba=b, bab=a > find the member of semigroup S using breeding coset enumeration technique

[hellolearning]

Your explanation is always awesome.... Whenever I am stuck in any subject and that is available on your channel then i feel very relaxed that if i watch it before one day a paper, the paper will be awesome 😎....
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[Anchal-]

Clear cut explanation sir🎉 thank you so much ❤ 😊

[InvinciblePepe]

Extremely helpful and easy way of teaching. Thanks

[bijaykumarmohanta]

The last example which is given for 2^n is not closure if one take n= 1 and n = -2, then the ans will be a rational number.

[truptirekhapati]

Sir division doesn't follow associativity, so can't be semigroup .. correct me if I am wrong

[nupurhiray]

Thankyou is much sir ! This helped a lot.. I was struggling with algebraic structure until I watched your videos... keep going 🌟😇🔆

[shraddha]

Integer (Z) ke isme division check krne ki kya jarurt sir wo closure property hi nhi follow krti..

[apratick]

In example 2^n, where n is an integer, don't you think, its not an algebraic structure? because if you put n=-1, the output is 0.5 which is not an interger. Please correct me if I'm wrong.

[khalnayak]

than you sir providing this type of video

[srinathbadugu]

(Z, ÷) => first of all its not an algebraic structure, so no need to check whether it's semi group or not.
5÷ 2= 2.5 doesn't belong to Z.

[erakshisharma]

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[thepromise]

What If we take negative values In 2^n /n is integer w.r.t. * {n=-1, -2
Plz explain

[adityabatra]

in the last expression n is an integer so it can be negetive aswell
consider (2^-3)*(2^2)=0.5 which does not belong to integer so closure is not met
how is this semi group please clarify

[JustwaitNwatch-w]

Semi group : an algebraic structure (S, *) is semi group if it follows associative property

Algebraic structure must follow closure prop.

[singmanassingh]

Sir devision ke method me natural number flow (semigraph) hoga
Bhai koi bata do❤