this post was submitted on 17 Jan 2024

40 points (82.3% liked)

No Stupid Questions

nostupidquestions@lemmy.world

49,363 readers

7,149 active

710 users here now

No such thing. Ask away!

!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)

Rule 1- All posts must be legitimate questions. All post titles must include a question.

All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.

Rule 2- Your question subject cannot be illegal or NSFW material.

Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.

Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.

Rule 4- No self promotion or upvote-farming of any kind.

That's it.

Rule 5- No baiting or sealioning or promoting an agenda.

Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.

Rule 6- Regarding META posts and joke questions.

Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.

On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.

If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.

Rule 7- You can't intentionally annoy, mock, or harass other members.

If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.

Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.

Rule 8- All comments should try to stay relevant to their parent content.

Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.

Rule 10- Majority of bots aren't allowed to participate here. This includes using AI responses and summaries.

Credits

Our breathtaking icon was bestowed upon us by @Cevilia!

The greatest banner of all time: by @TheOneWithTheHair!

founded 3 years ago

moderators

L3s@lemmy.world

technopagan@lemmy.world

jeffw@lemmy.world

L3s@hackingne.ws

L4s@lemmy.world

Is "If A then B" equal to "B if and only if A"? (lemmy.world)

submitted 2 years ago by Lafari@lemmy.world to c/nostupidquestions@lemmy.world

60 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] Thoth19@lemmy.world 1 point 2 years ago (1 child)

I mean it is the definition of "if and only if". And by commutativity we also know that A iff B is equal to B iff A

permalink

fedilink

source

parent

hideshow 2 child comments

[–] Rhynoplaz@lemmy.world 2 points 2 years ago (1 child)

Oh yeah. I was very confused as to what that meant, but I learned something today.

permalink

fedilink

source

parent

hideshow 2 child comments

[–] Thoth19@lemmy.world 1 point 2 years ago

Yeah if vs iff can be confusing at first. Trying to understand it with normal grammar doesn't work right. It's a lot more helpful to grok the symbols and so the truth tables by hand to see how they fit together

permalink

fedilink

source

parent

lemmy:	0.19.20
mlmym (mschae):	26.3.4