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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To think there’s nothing wrong with a circular argument?

66 replies

SnugShaker · 15/08/2025 10:00

People always dismiss circular arguments as if they’re inherently flawed but sometimes they make perfect sense. If something is true by its own definition or widely accepted as fact, isn’t that just reinforcing a logical truth rather than a flaw? Not all circular reasoning is meaningless - some of it is just common sense.

OP posts:
BlueJuniper94 · 15/08/2025 11:17

RedNine · 15/08/2025 11:14

OP would you indulge me and pop up an example of what you are thinking of.

I feel like if the OP could provide us with one they would have by now. I wait in hope

SnugShaker · 15/08/2025 11:18

Isittimeformynapyet · 15/08/2025 11:13

This thread is now what I consider to be a circular argument. It's not going anywhere.

Is that the joke OP?

Edited

Not a joke but I guess that’s kind of proving my point!

OP posts:
GasperyJacquesRoberts · 15/08/2025 11:27

Here's a circular argument:

  1. We can trust what the Bible says because it's the word of God

  2. We know the Bible is the word of God because it says so in the Bible

Does that strike you as a reasonable and justifiable argument?

SnugShaker · 15/08/2025 11:33

GasperyJacquesRoberts · 15/08/2025 11:27

Here's a circular argument:

  1. We can trust what the Bible says because it's the word of God

  2. We know the Bible is the word of God because it says so in the Bible

Does that strike you as a reasonable and justifiable argument?

That’s a good example of circular reasoning that isn’t just a definition - it’s trying to prove a point using the conclusion as evidence. My OP was more about cases where people call something circular when it’s actually just stating a definition or self-evident truth.

OP posts:
TheOtherAgentJohnson · 15/08/2025 11:40

SnugShaker · 15/08/2025 11:33

That’s a good example of circular reasoning that isn’t just a definition - it’s trying to prove a point using the conclusion as evidence. My OP was more about cases where people call something circular when it’s actually just stating a definition or self-evident truth.

No it wasn't. Come on, OP, just fess up. You're never going to get out of this hole by digging.

GasperyJacquesRoberts · 15/08/2025 11:43

SnugShaker · 15/08/2025 11:33

That’s a good example of circular reasoning that isn’t just a definition - it’s trying to prove a point using the conclusion as evidence. My OP was more about cases where people call something circular when it’s actually just stating a definition or self-evident truth.

But that exact claim is seen as a statement of a self-evident truth by many.

SnugShaker · 15/08/2025 11:49

GasperyJacquesRoberts · 15/08/2025 11:43

But that exact claim is seen as a statement of a self-evident truth by many.

But that’s where it gets tricky. Something can feel self-evident within a belief system but still be circular when presented as proof to those outside it. My OP was more about definitions or widely-agreed facts, not faith-based premises.

OP posts:
VeryStressedMum · 15/08/2025 11:53

GasperyJacquesRoberts · 15/08/2025 11:43

But that exact claim is seen as a statement of a self-evident truth by many.

That might be so but it still would be a circular argument because 1 is true because of 2 and 2 is true because of 1

GasperyJacquesRoberts · 15/08/2025 12:00

VeryStressedMum · 15/08/2025 11:53

That might be so but it still would be a circular argument because 1 is true because of 2 and 2 is true because of 1

I 100% agree. Circular arguments are worthless. I was just trying to illustrate that when the OP claims that circular arguments can be ok if they're used for a self-evident truth that can fall apart because not everyone will agree that a given "self-evident" claim is necessarily true.

Floatlikeafeather2 · 15/08/2025 12:42

SnugShaker · 15/08/2025 11:12

Exactly, that’s my point. A definition isn’t an argument in the formal sense but people sometimes dismiss it as “circular reasoning” when it’s really just stating what something is. I’m saying those shouldn’t automatically be written off as flawed, because they’re not trying to be persuasive arguments in the first place.

Who are these people? People dismissing a definition as a circular argument is not something I've ever come across. Truly.

VeryStressedMum · 15/08/2025 12:54

Floatlikeafeather2 · 15/08/2025 12:42

Who are these people? People dismissing a definition as a circular argument is not something I've ever come across. Truly.

I have to agree, I have never experienced someone giving a definition of something then another person dismissing it as a circular argument.

Most people have never heard of circular argument so if they heard one they would know it doesn’t really make sense but not know the term for it.
Those who think an actual definition is a circular argument is just up for a row.

VeryStressedMum · 15/08/2025 12:54

GasperyJacquesRoberts · 15/08/2025 12:00

I 100% agree. Circular arguments are worthless. I was just trying to illustrate that when the OP claims that circular arguments can be ok if they're used for a self-evident truth that can fall apart because not everyone will agree that a given "self-evident" claim is necessarily true.

Oh I see yes I understand what you’re saying

StrikeandRobinlol · 15/08/2025 13:06

This is how people educate themselves into idiocy 😂

Charabanc · 15/08/2025 13:09

SnugShaker · 15/08/2025 10:15

For example: “All bachelors are unmarried men.” It’s circular in that the definition repeats itself but it’s still true and valid because that’s exactly what a bachelor is.

That is a definition, not a circular argument.

A circular argument would be:

Person A: "A bachelor is someone who feels like a bachelor"
Person B: "So what is a bachelor?"
Person A: "Someone who feelsl like a bachelor"

niadainud · 15/08/2025 13:45

SnugShaker · 15/08/2025 11:04

Yes, a strict definition is not an “argument” in the formal sense but people often lump it in when dismissing something as circular. Even in your unmarried man example, it might be a clumsy definition but my point is that some statements get written off as circular reasoning when they’re really just stating a definition or a self-evident truth.

So you're agreeing with my post which was entirely contrary to what you wrote in your OP?

Charabanc · 15/08/2025 14:08

niadainud · 15/08/2025 13:45

So you're agreeing with my post which was entirely contrary to what you wrote in your OP?

I don't think OP really knew what a "circular argument" was when they started this thread.

They do now!

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