Logic tutorial: how to use Disjunctive Normal Form | Attic Philosophy

Tutorial on Disjunctive Normal Form, by philosophy lecturer Dr Mark Jago.
This video explains what Disjunctive Normal Forms are and shows you how to put any sentence in propositional logic in to disjunctive normal form. We also look at Negation Normal Form and Conjunctive Normal Form.
There's some worked examples of Normal Forms in this video: • Logic tutorial: how to...
My academic philosophy page: markjago.net
Many of my academic publications are available freely here: philpapers.org/s/Mark%20Jago
#logic #philosophy #tutorial #proofs

[@101Jman]

Great explanation. I'm starting a mathematical logic paper this semester that I'm quite nervous about. This should help a bit.

[@Jag89singh]

Good explanation, focused straightforward and esay...thanks a lot

[@georgioskyritsis2929]

Thank you, great explanation!

[@VictorAndScience]

Great way of explaining things. Hopefully more videos are on the way.
Also hair is pretty awesome.

[@retbeauregard2983]

Thanks a bunch for this video! You are helping me more than you know!

[@AtticPhilosophy]

Happy to help!

[@Free2Flay]

Thanks for making this video. My professor skipped right over this subject, the textbook only has a short blurb, and yet there was still a homework problem covering it.

[@jeannel1816]

Thank you for another high-quality video

[@AtticPhilosophy]

Glad you enjoyed it!

[@StreetArtist360]

Thank you. Keep it up.

[@abd-elrahmanmohamed9839]

well explained . Thanks !

[@akiraj5504]

this video is just PERFECT

[@junaidesse]

Wow man. you're explanation is comprehensive and well thought out.
And you are very likable too ! No homo :D

[@ps13Josh]

Very detailed, great production quality and literally saved my life. I have learnt things from this video that my lecturer didn't explain enough in, thank you very much sir!

[@fiddifussel7841]

Oh no! there are only four videos on this channel! I need the rest of it!

[@avanivyas547]

video editing is nice ....... easy,intrsting and simple explanation....

[@nmot97]

Thanks, subscribed

[@matthcw8745]

Thanks!

[@devjoshi8501]

thanks really

[@englishwithteachermark4307]

Excellent video.

[@AtticPhilosophy]

Thanks!

[@vovan1989]

you dont happen to know a paper or a literature , where i can cite from the algorithmus,thx

[@Emir-xq7jt]

After my brain-freezing textbook explanation, this helped a lot.

[@AtticPhilosophy]

Great! Glad it helped.

[@jayrollo1352]

Bravo bravo!!!!!!

[@AtticPhilosophy]

Thanks!

[@alkarani5551]

Kya mst hair style h....nd also looking handsome 😍😍

[@oluwadamilolaeliastuwase1463]

Thank you

[@AtticPhilosophy]

You're welcome

[@TheJoeisverycool123]

This is great!
Can you do Conjunctive Normal Form too?

[@mr_sn4k3s]

+JosephJ It's just the reverse of disjunctive normal form

[@hirakmondal6174]

+Mr.Snakes its like saying that Anal sex is just the opposite of shitting..!!!

[@silvertranc]

Of all the examples that exist in the world, that's the one you chose to contribute to this discussion. What an interesting line of thinking. Let's try some more. I say, "Can you explain what diversifying your portfolio is?" The most obvious response is, "It's the opposite of not diversifying your portfolio". What would you say?

[@hirakmondal6174]

This guy stars in Numberphille right?

[@csperi-peri2447]

Great video dude!
Would be even better if you showed a more complex & how to convert it to DNF.

[@AtticPhilosophy]

Thanks!@ There's a bit more on DNF in this video: th-cam.com/video/AEk8OfwpTNw/w-d-xo.html

[@nicholascousar4306]

So you can have one of your disjuncts be a disjunction and another disjunct be a conjunction, and still form a DNF sentence? That is, sentences in DNF are allowed to have disjunctions and conjunctions on the same level of its syntax tree? Just want to clarify if this property follows from the definition of DNF or from the associativity of disjunctions.

[@AtticPhilosophy]

Hi, yes that's right. In DNF, you can't have conjunctions above disjunctions on any branch of the syntax tree.

[@nootproofficial2738]

totally jealous of the hair

[@mandla-nkosi]

Adderall Alternatives hahaha >_

[@freddyfozzyfilms2688]

In Boolean algebra they call this sum of products

[@AtticPhilosophy]

That’s right, written differently but same thing.

[@zepoloko2106]

A v B v C v D v E is in DNF? What about A ^ B ^ C ^ D ^ E??

[@AtticPhilosophy]

Yes, both those are in DNF and CNF too.

[@zepoloko2106]

@@AtticPhilosophy Thanks a lot for reply. These examples was really confusing me

[@alkarani5551]

My attention is on his hair and face more than listening the lecture 🙄🙄

[@labreynth]

This didn't make the slightest bit of sense to me. I don't see what makes a logic sentence pass as disjunctive normal form. They all look the same, what is the difference?

[@AtticPhilosophy]

Sorry it didn't work for you! DNFs are disjunctions of conjunctions, like this: (p&q) v r. So something like (pvq) & r isn't in DNF.

[@chenyang8019]

讲的好诡异

[@therealumutk]

是同志

[@mysteriousboi1019]

I guess the Math is good for a Brit

[@AtticPhilosophy]

Haha!

[@cainsmyth53]

I hate maths

[@AccuphaseMan]

Wow, not an Indian. Was beginning to lose hope.