Michael

I was just pointing out that the T-schema is rather empty as-is. Tarski didn't even offer it as a definition of truth: Note that he's not saying that ...

I've been a moderator since day 1.

This discussion was merged into "What is truth? said jesting Pilate; and would not stay for an answer."

That "grounding fact" might be that the sentence "snow is white" coheres with some specified set of sentences, à la coherence theory. a. "snow is whit...

Then knowledge requires certainty. If we are not certain that John is a bachelor then we do not know that John is a bachelor. The argument I offered w...

Because I understand "aliens might not exist" as "I am not certain that aliens exist" as opposed to just "I do not know that aliens exist". So the arg...

I think the wording was ambiguous. This is closer to what I meant: It's not like I recognized that I am English and live in England and then concluded...

If you don't like the material conditional then we can go back to using premises and a conclusion. Aliens exist Aliens might not exist (? I do not kno...

It's a material conditional, which is true if the consequent is true. Given that "I do not know if aliens exist" is true it then follows that "if alie...

Perhaps being English and living in England. Or perhaps a family member is a supporter and so I adopted the team as my own. But it's a mistake to say ...

How is it mixing modalities? You just said that "aliens might not exist" means "I do not know if aliens exist" and so the claim above is: a) if aliens...

Certainty describes our epistemic condition as well and that was one of my examples. I agree that we say "I might be wrong" when we don't know, but I ...

It just is or isn't the case that aliens exist, and yet I can say "aliens might exist" and you can say "aliens might not exist" and we'd both be right...

Identifying as a fan. I think you're getting it backwards. I'm not a supporter because I wear the shirt or watch the games; rather I wear the shirt or...

Identifying as a Manchester United supporter. I support England when they play. I don't wear the shirt and most of the times I don't even watch the ga...

I think you're describing the lottery paradox there? There are 1,000 tickets and one of them is a winner and you are not certain which. For each ticke...

Not in the sense that the appearance is what determines identity. Wearing a Manchester United shirt isn’t what it means to be a Manchester United supp...

I'm sure a Manchester United supporter would feel uncomfortable wearing a Manchester City shirt. It's not incoherent for them to want to change their ...

p ? ?p Therefore (b) is true if there is a possible world where John is not a bachelor. And if fallibilism is true then knowledge does not require cer...

And what does certainty require? I suspect that what is true is necessarily true. In which case knowing everything with certainty (omniscience) requir...

Why does fallibilism preclude omniscience? Doesn't omniscience just mean knowing everything? If fallibilism is true then I can know everything even if...

Knowing and being wrong are contradictions, but knowing and possibly being wrong are not. For example, it is possible that I am wrong in believing tha...

I don't think it does. @"bongo fury" quoted this earlier which is worth revisiting:

There doesn't seem to be any identity ignorance here: a) If I know that John is a bachelor then John might not be a bachelor This can be interpreted a...

https://twitter.com/hugolowell/status/1560348866167422978

Actually, no. I think I can still accept 6. Because it means one of these two things: 1. There is a possible world where my true belief is false 2. I ...

I'm not saying they don't. I just don't think animal behaviour has anything to do with gender.

Animals don't have genders, just biological sexes.

Very clever, there is a possible world where both of these are true: a) the number in the box might be odd b) the number in the box is 2 Which contrac...

No, because the number 2 is necessarily even. My examples are only ever where the truth of the claim is not necessarily true. Hence in the OP: 1. Kp (...

That's an empirical claim that requires first knowing what it means to be a man or woman and then looking to see if anyone meeting these conditions ha...

Yes, exactly that. Moore's paradox was the inspiration for this discussion. "I believe it is raining and it is not raining" is logically consistent an...

They're women because they give birth and breastfeed? Or only women are able to give birth and breastfeed?

So you're saying that someone is a woman iff they can give birth and breastfeed?

a) The ball might be red If you accept that a) is true even if the ball is blue then you accept that there is a possible world where the ball is blue ...

There is a ball hidden in a box. That ball is either red or blue. a) The ball might be red. This proposition is true whatever the colour of the ball i...

I know, but "bachelor John could be married" doesn't mean "there is a possible world where John is a bachelor and married". There is a difference betw...

I showed why in that post. q ? the proposition that p T(q) ? q is true 1. T(q) ? p 2. T(q) ? ?x(x=q) 3. p ? ?x(x=q) 4. ¬T(q) ? ¬p 5. ¬T(q) ? ?x(x=q) 6...

What does "could be false" mean? Either "there is a possible world where it is false" or "I am not certain that it is true". In both cases "My true be...

Is it gender that sports uses to group athletes? Or is it sex?

A true belief entails truth as well. I guess that it's raining outside and I might be wrong. Even if I guessed correctly. Otherwise "I might be wrong"...

I believe so. I suspect I identify as a man because I've been told that I'm a man as I grew up and it stuck. Do you have specific examples of why it i...

You can make an assumption based on appearances if you like, and in most cases you'd be right, but then if you hear me or someone who knows me say oth...

It applies to being a man (and woman). I don't know off the top of my head what other things are like this. Maybe being a supporter of Manchester Unit...

I don’t know what any such characteristics would be. I can imagine waking up in a woman’s body, whether by magic or a brain transplant, and yet I’d co...

Again from the first page, but amended to not be about omniscience: Maybe the problem is with the interpretation of the English sentence. These two do...

I’ve never said anything to suggest otherwise which is why I don’t understand the objections.

You and others have said things like “if p is true then p cannot be false” which I’m not sure how to understand. If it’s something like p ? ¬?¬p then ...

This is acceptable except your use of the word “know”. I think “we are not certain” is a better phrasing. This is the approach I took back here: My be...

This is why your wording is ambiguous. A biological male who identifies as a women is a transgender woman, as I understand the word “identify”. What d...