Um, the points of a line may be put into one-to-one correspondence with the set of real numbers, which Cantor proved to be uncountably infinite in 1874. In fact, the points in a tiny line segment are uncountable. — Real Gone Cat
1. (uncountable) endlessness, unlimitedness, absence of a beginning, end or limits to size.
2. (countable, mathematics) A number that has an infinite numerical value that cannot be counted. — https://en.wiktionary.org/wiki/infinity
I'm unsure why you're hung up on causal determinism. — Real Gone Cat
You seem genuinely interested in the topic. — Real Gone Cat
Is this what you're looking for? — Real Gone Cat
I don't know what you're talking about. — jgill
Nor I. — Banno
I don't have an opinion [on what determinacy is]. — Banno
It has a bunch of uses, which we might set out one by one, but which change and evolve over time - like all such words. — Banno
If a line (not a line segment) is ontically determinate, I assume you can draw it in its entirety. No?
I can't. Can you? — Real Gone Cat
...with the supposition that any of this makes sense. — Banno
So width is length? — Real Gone Cat
And what is "uncurved" length? — Real Gone Cat
I would like a better definition of determinacy. — Real Gone Cat
You seem to be implying that the line is determinate because the line exists in its entirety in the plane. Is this correct? — Real Gone Cat
Oh, Banno. You're ruining our fun. — Real Gone Cat
Just an example. Mathematics does sometimes directly address how determinate its objects are, at least in this sort of sense, whether there's a unique solution, finitely many, infinitely many, etc.
Is this sort of determinateness any use to you? — Srap Tasmaner
So, if I have a countable collection of lines, they are countable? I suppose that's a step in the right direction. — jgill
Ah, I see, you meant countable as a unit, as a line. — Srap Tasmaner
Set theorists and foundations people might be interested in such distinctions, but for me infinity simply means unbounded. — jgill
and the length of a line is not countable in that sense. — Srap Tasmaner
Yet the infinite length of a geometric line is definite, — javra
Can you elaborate? Do you mean that the line is measurable?
I know so little about math, but I'm always eager to learn. — Real Gone Cat
Maybe mathematical infinities only make sense in relation to the metaphysically infinite — Gregory
It's very hard for me to sustain his though experiment, that once we stop perceiving an object, we don't have many good reasons (although something must be there, in the world) to suppose it continues to exist. For as he says (I know I'm re-quoting him, but, he articulates it so well): — Manuel
But it is very, very clear, that Hume was what is now called a "mysterian", which should be the common- sense view that we are natural creatures, and hence some things are beyond our capacities, as some things are beyond the capacities of dogs or birds. — Manuel
like an instinct, a phrase he doesn't appear to use in this chapter. — Manuel
That's exactly right, or at least, that's how it looks like to me as well. — Manuel
This is somewhat paradoxical, given his reputation and thrust of his thought, an argument for innate faculties, — Manuel
The word might be in there somewhere, but there doesn't seem to be much use made of the idea; the whole flavor of the account is causal, mechanical. — Srap Tasmaner
Yes. I think he has in mind something like mechanical, but also something like an instinct, a phrase he doesn't appear to use in this chapter. Perceiving is like breathing or seeing, we can't not have perceptions. — Manuel
we need principles that will relate certain perceptions to each other. — Srap Tasmaner
VERY perceptive. This is one of the reasons he gives in the Appendix for, essentially stating that his system fails, or as he puts it "my hopes vanish". This is one of the things he cannot account for, how perceptions relate to each other. The other being that we really do perceive continuity in the objects. In other words, he has used these two principles: the uniting principle and the continuity principle (my terminology, not his), without being able to justify them, but he isn't able to renounce either of them. — Manuel
To put it another way, I don't see it as having anything to do with "reality"; I think that term is altogether too overblown. "The most plausible" is just what seems to be the best explanation; the one that fits best within a general network of perspectives that I find explanatorily workable. — Janus
I guess the example is unclear because it lacks specificity. The unknown critter is referred to as both an experience-based prediction and also an inference. — praxis
Believing something is "holding it to be true". That is not what I'm talking about; I'm talking about entertaining the idea that seem most plausible, not holding ideas to be true. — Janus
You asked: “If one then moves away from one’s position so as to avoid the possibility of contact with a small animal, how can this activity be accounted for in the absence of belief (to whatever extent conscious and/or subconscious) that the movement was likely produced by a small animal (rather than, for example, by wind-blown leaves)?”
If a mind accurately predicts the presence of a rat then moving away from it, assuming the rat is rabid or whatever, is a good and adaptive prediction. Otherwise it’s a prediction error. — praxis
Prediction, to put it succinctly. This happens whether we like it or not. Our minds are constantly looking for patterns and making predictions. — praxis
You say:" I do get the often grave problem of unjustified belief treated as incontrovertible knowledge. But I so far take it that such isn’t equivalent to belief per se.)
I think that beleif per se would also apply to Justified belief. — Ken Edwards
Anything that is not known but seems reasonable can be accepted and entertained provisionally for pragmatic reasons; no believing needed. — Janus
I did give one.. one where preferences CAN NEVER be met, by default of things like the law of non-contradiction. But we can use other standards. For example, a world in which harm is entailed to survive can be considered morally disqualifying. — schopenhauer1
I don't see how it has to be "platonically real Good" for there to be some sort of morality. One can keep it at a level of "treat people with dignity" or "don't treat them as a means to an ends". — schopenhauer1
But then here we have your preference for what is good winning out perhaps...thus starting the cycle. — schopenhauer1
So I think we have to parse out the structure of the system versus various attempts at morality within it. — schopenhauer1
That is to say, within this system, it can certainly be said that there could be a case that one can do good or do "better" towards someone and one can do bad or "worse" towards someone. Perhaps good here is something like helping a friend when they are sick or visiting them in the hospital. Bad here would be picking on someone who is already down.. Just giving various examples. None of these "truths" of INTRA-WORLDLY ethics can justify or make up for the fact that perhaps the world where these intra-worldly ethics takes place is ITSELF a morally disqualified world for aforementioned reasons. — schopenhauer1
We still run into the same problems though. It's just a "dynamic" SOME rather than a static. — schopenhauer1
With the idea of only SOME people's preferences satisfied, and those preferences entailing the infringement of other people's preferences, this makes this existence morally disqualifying. — schopenhauer1
That's not quite what I'm talking about. [...]
So a world whereby we have to do X, Y, Z to survive may be thought as being "acceptable' to one group but "not acceptable" to the other. Just because the "acceptable" group conforms with current realities of what is needed to survive and have accepted harms like illness and disasters, does not mean that thus it is moral. It simply is what needs to happen if one does not want to die.. Either way, this still makes this "real world"/existence morally disqualifying because whilst some people don't mind/like the terms of this reality, THEY get to have their way above and lording over those who would not have wanted this reality. — schopenhauer1
"This square is not a square" is seen as a self-contradiction on its face, and its truth value is falsehood, and there is no contradiction in saying its truth value is falsehood.
"This sentence is false" also implies a self-contradiction, but it is not so easy to say its truth value is falsehood, since if its truth value is falsehood then its truth value is truth and if its truth value is truth then its truth value is falsehood. — TonesInDeepFreeze
A square is a circle — javra
That's not paradoxical. — TonesInDeepFreeze
No arithmetically adequate and consistent theory can define a truth predicate by which to then formulate a predicate 'is a liar'.
Keep in mind that Tarski's theorem is a claim only about certain kinds of theories (arithmetically adequate and consistent) formulated in classical logic. — TonesInDeepFreeze
Rather than get bogged down in whatever vagaries there might be in the Epimenides paradox, I would suggest the clearer, simpler, mathematically "translatable" simpler and more starkly problematic "This sentence is false". — TonesInDeepFreeze
In the sense you mention a 'truth predicate' we actually say a 'truth function'. Meanwhile, (Tarksi) for an adequately arithmetic theory, there is no truth predicate definable in the theory.
For a language, per a model for that language, in a meta-theory (not in any object theory in the language) a function is induced that maps sentences to truth values. It's a function, so it maps a statement to only one truth value, and the domain of the function is the set of sentences, so any sentence is mapped to a truth value.
And, (same Tarksi result said another way) for a semantic paradox such as the liar paradox, the statement can't be asserted in any arithmetically adequate consistent theory, so it is not mapped to any truth value. — TonesInDeepFreeze
If a train of logical reasoning ends on a contradiction (paradox), the following possibilities must be considered
1. Fallacies (mistakes in applying the rules of natural deduction)
and/or
2. One/more false premises (axioms/postulates)
If not 1 and/or 2 then and only then
3. The LNC needs to be scrapped + a version of paraconsistent logic needs to be adopted — Agent Smith
