I agree. That takes it to the realm of the meaning of words: reality. — jgill
Neoplatonic mathematics is governed by a fundamental distiction which is indeed inherent in Greek science in general, but is here most strongly formulated. According to this distinction, one branch of mathematics participates in the contemplation of that which is in no way subject to change, or to becoming and passing away. This branch contemplates that which is always such as it is and which alone is capable of being known: for that which is known in the act of knowing, being a communicable and teachable possession, must be something that is once and for all fixed. — Jacob Klein, Greek Mathematical Thought and the Origin of Algebra
The problem, though, is that this world is essentially full of junk. The vast majority of it is simply useless, and of no interest to anyone whatsoever. — Streetlight
the idea of natural numbers (1, 2, 3...). Rovelli basically asks: why does anyone think natural numbers are natural at all? We certainly find it useful to count solidly individuated items, but he notes that what what actually counts as 'an object' is a very slippery affair: "How many clouds are there in the sky? How many mountains in the Alps? How many coves along the coast of England?". — Streetlight
If math exists all math exists potentially — EnPassant
I think the Platonic realm does exist in the sense that it makes all kinds of math possible but not necessarily realized — EnPassant
As for the Platonic realm - does it mean that the number 3 exists in some concrete reality or does it mean that in the depths of mathematical reality there is a potential for '3' to exist - depending on what events bring it into existence? That is, is there a mathematical potential, above our specific forms of math, that makes these forms of math possible? If we say mathematics 'exists' we have to be very clear on what we mean by 'exist'. — EnPassant
Once a concept is defined within an existing framework of mathematics, in a sense all that logically flows from it is potential, awakened by diligent investigations and discovery. — jgill
The way I put it is that numbers are real, but they're not existent in the sense that phenomenal objects are existent, — Wayfarer
The way I put it is that numbers are real, but they're not existent in the sense that phenomenal objects are existent, but mainstream thought can't accomodate this distinction because there is no conceptual category for intelligible objects, in the Platonic sense. — Wayfarer
You may have answered this earlier in the discussion, but my obvious question is: what do you mean by real? If you take a Kantian view of the matter, mathematical objects are universal, necessary, and objective. — Jamal
So the question is, where is this potential? Is it merely inside our skulls or does it exist independently of the human brain? Is it universal? — EnPassant
1. Intelligible objects must be independent of particular minds because they are common to all who think. In coming to grasp them, an individual mind does not alter them in any way; it cannot convert them into its exclusive possessions or transform them into parts of itself. Moreover, the mind discovers them rather than forming or constructing them, and its grasp of them can be more or less adequate. Augustine concludes from these observations that intelligible objects cannot be part of reason's own nature or be produced by reason out of itself. They must exist independently of individual human minds.
2. Intelligible objects must be incorporeal because they are eternal and immutable. By contrast, all corporeal objects, which we perceive by means of the bodily senses, are contingent and mutable. Moreover, certain intelligible objects - for example, the indivisible mathematical unit - clearly cannot be found in the corporeal world (since all bodies are extended, and hence divisible.) These intelligible objects cannot therefore be perceived by means of the senses; they must be incorporeal and perceptible by reason alone. — The Cambridge Companion to Augustine
So the question is, where is this potential? — EnPassant
And the fact that this causes us to ask 'what we mean by "real"' is central to the whole matter. — Wayfarer
At its root, the new idea holds that the common conception of “reality” is too limited. By expanding the definition of reality, the quantum’s mysteries disappear. In particular, “real” should not be restricted to “actual” objects or events in spacetime. Reality ought also be assigned to certain possibilities, or “potential” realities, that have not yet become “actual.” These potential realities do not exist in spacetime, but nevertheless are “ontological” — that is, real components of existence.
This new ontological picture requires that we expand our concept of ‘what is real’ to include an extraspatiotemporal domain of quantum possibility,” write Ruth Kastner, Stuart Kauffman and Michael Epperson.
Considering potential things to be real is not exactly a new idea, as it was a central aspect of the philosophy of Aristotle, 24 centuries ago. An acorn has the potential to become a tree; a tree has the potential to become a wooden table. Even applying this idea to quantum physics isn’t new. Werner Heisenberg, the quantum pioneer famous for his uncertainty principle, considered his quantum math to describe potential outcomes of measurements of which one would become the actual result. The quantum concept of a “probability wave,” describing the likelihood of different possible outcomes of a measurement, was a quantitative version of Aristotle’s potential, Heisenberg wrote in his well-known 1958 book Physics and Philosophy. “It introduced something standing in the middle between the idea of an event and the actual event, a strange kind of physical reality just in the middle between possibility and reality.”
I think it’s the ‘realm of possibility’ and that it is a real realm, in a way analogous to ‘the realm of intelligible objects’. — Wayfarer
I agree, and I see a problem with the determinist attitude. Describing activity in the physical world in terms of efficient causation has been a very useful and practical venture. The problem is that this descriptive format has limitations which the determinist ignores or denies. We find that within human beings there is an active mind, working with immaterial ideas, to have real causal affect in the physical world. Causation from the mind, with its immaterial ideas is described in terms of final cause (goals purpose and intent), choosing from possibilities, which is completely distinct from efficient causation.
So there is a very real need to recognize the limitations of "efficient causation" as an explanation of the activities in the physical world. And we need to accept the reality of the immaterial "final cause" as having real efficacy in the material world. — Metaphysician Undercover
We might combine these two questions, to ask what does it mean to say that potential is real. — Metaphysician Undercover
According to one of the two main accounts of causality, namely the perspectival "interventionist" interpretation, a causal model is a set of conditional propositions whose inferences are conditioned upon variables that are considered to have implicative relevance but which are external to the model, such as the hypothetical actions of an agent — sime
What I don't follow is the relevance of a "final cause", — sime
Once a chess game is played (even in one's mind) that chess game becomes real. — EnPassant
I think 'chess is the possibility-space (i.e. actuality) of all chess games and players are the potential realizers of all chess games' is clearer.I think chess is a good analogy. Once the concept of chess exists all possible chess games are given potential. Once a chess game is played (even in one's mind) that chess game becomes real. — EnPassant
According to one of the two main accounts of causality, namely the perspectival "interventionist" interpretation, a causal model is a set of conditional propositions whose inferences are conditioned upon variables that are considered to have implicative relevance but which are external to the model, such as the hypothetical actions of an agent. These models, whose use is now widespread in industry and the sciences, are thus naturally "compatibilist" in conditioning all models inferences upon hypothetical or possible values of external variables that are considered to be chosen freely. So I presume you are criticising earlier historical conceptions of causality such as Bertrand Russells', which assumed a causal model to be a complete description of a system's actual dynamics (thus making cause and effect redundant notions). — sime
What I don't follow is the relevance of a "final cause", unless it is surreptitiously being used to refer to an initial cause, i.e. a bog standard cause. For example, if I am working to build a shed in the back garden, what is the "final cause" of the shed here? Obviously my thoughts, goals and motivation throughout the project cannot be considered a literally "final" cause, which speculation notwithstanding, leaves the resulting actual shed as the only remaining contender for the final cause. Are you insinuating that the resulting shed caused me to build it? (which incidentally isn't likely to look anything like my imagined shed due to my terrible practical skills) — sime
"Final cause" is the intent, the purpose — Metaphysician Undercover
I think the whole idea of final causation was a casuality of the Scientific Revolution and the rejection of scholastic/Aristotelian ideas of causality. Note however Aristotle's Revenge by Edward Feser — Wayfarer
"Final cause" is the intent, the purpose. So it is exactly the case that your thoughts, goals, and motivation are literally the final cause of the shed. Whatever reason you had, whatever purpose you had in your mind, this is the reason why the shed was built. Therefore these ideas, as intent, are the cause of your actions, and by extension the cause of existence of the shed. This is the basis of the concept of "intent" in law, the decision to bring about consequences.
That is why "variable" does not serve as an adequate representation. The fact that you wanted a shed, and this motivated you to go out and built a shed, is the cause of the shed. And you could further specify the particular purpose you had in mind for the shed when you built it. The intent, purpose in mind, or "final cause", is not a "variable" in the coming into existence of the shed, it is the cause of existence of the shed — Metaphysician Undercover
I understand Aristotle's definition of a 'final cause', but it makes no sense to me to muddle such "final causes" with the "causes" meant by the modern scientific definition of "causes" that refer to experimental inventions that go on to produce measurable effects. — sime
You don't seem to understand causation sime. There is no scientific definition of cause. Cause is a philosophical concept. — Metaphysician Undercover
...and that causation is still undergoing formalization... — sime
Causal models merely express the concept that doing something leads to observations that otherwise wouldn't occur. — sime
Causal models essentially define causes as being 'initial' with respect to the causal orders they define or describe, making "final causes" an oxymoron in the sense of the causal order. — sime
Nevertheless, causal models have nothing to say regarding the order and linearity of time itself unless their variables are given additional temporal parameterization. All that they demand is that causes are considered to be controllable preconditions of their effects, not that causes are necessarily temporally prior to their effects in some absolute sense, which might well be considered a matter of perspective. — sime
If this is true, it's proof that there is no formalized definition of "cause".
And, since there are two distinct principal types of causation, efficient and final, there will never be an acceptable formalization of causation until the relationship between the two is represented properly. Formalization of one principal type of causation while excluding the other principal type of causation does not give a true formalization. — Metaphysician Undercover
This is exactly why a formalization is impossible, and causation will always be philosophical rather than scientific. This provides no basis toward understanding the cause of "doing something". So, a person does something and this causes something which otherwise wouldn't occur. If we want to know whether the thing which otherwise wouldn't have occurred is intentional, or accidental, we need a much better principle than this. And if you claim that this is irrelevant to "causation", all that matters is whether the thing otherwise wouldn't occur, you fail to properly represent "final cause" in your formalization, and you provide no principles for excluding accidents from our actions. However, it's quite obvious that the effort to exclude accidents is very important. — Metaphysician Undercover
The use of "final" in "final cause" seems to be misleading you. "Final" is used in the sense of "the end", and "end" is used in the sense of "the goal" or "objective". The terms "end", and "final" are used when referring to the goal or objective because the intentional cause is what puts an end to a chain of efficient causes when looking backward in time. So if D caused E, and C caused D, B caused C, and A caused B, we can put an end to that causal chain by determining the intentional act which caused A. It is called "the end", or "final" cause because it puts an end to the causal chain, finality. — Metaphysician Undercover
Take a chain of dominoes for example. We look at the last fallen domino and see that the one falling prior to it caused it to fall. Then the one prior to that one caused it to fall. When we continue to follow this chain of causation, we find the intentional act which started the process, and say that this is "the final cause", because it puts an end to that causal chain. The terminology is derived from our habit of ordering things from the present, and looking backward in time, so that the causes nearest to us at present appear first, and the furthest are last. — Metaphysician Undercover
This I do not understand at all. The fact that accidents are still considered to be caused, demonstrates that causes are not necessarily "considered to be controllable preconditions". Furthermore, I've never heard of a causal model which allows for a cause to be after its effect. You simply create ambiguity here by saying "in some absolute sense" because the principle of relativity of simultaneity allows that from the perspective of different frames of reference, the temporal order of two events may be reversed. — Metaphysician Undercover
But "Final causes" are representable in terms of bog standard causation without invoking teleological purposes, as demonstrated by reinforcement-learning algorithms that train a robot to implement "goal seeking" behaviour via iterative exploration and feedback . In this case, one might say that the "final cause" of the trained agent's behaviour is the trained evaluation function in the agent's brain that maps representations of possible world states to their estimated desirability. In other words, the final cause refers not to the actual goal-state in the real world that observers might colloquially say the learning agent "strives towards", but to the agent's behavioural policy and reward function that drive the agents behaviour in a mechanistic forward-chain of causation from an initial cause in a manner that is teleologically blind. — sime
If you accept the distinction between purposes and causes, then there is no case for the concept of causation to answer to regarding the distinction between intentions and accidents. For that's purely a matter of teleology and not causation. — sime
A is at the beginning :) Either a "final cause" is used to refer to a bog-standard initial cause that implies none of the teleological controversy commonly associated with aristotolean "final causes", else "final cause" refers to a teleological concept such as a purpose that is defined in relation to a goal state that is external to an agent's brain and that plays no causal role in the agent's behaviour, despite the fact the agent's behaviour converges towards the goal state. — sime
I suspect you are deviating from the commonly accepted notion of "final cause". The whole point of the "finality" in "final cause" is to imply that teleological concepts are necessary for explaining the effects of causation, which isn't the case in the dominoes example; teleology is explainable in terms of purposeless causation, as AI programmers demonstrate. But causation isn't explainable in terms of teleology. To mix up the concepts leads to confusion. — sime
Which demonstrates the point i was trying to make, that what we call the "temporal order" has to be distinguished from the "causal order". That A causes B but not vice versa, doesn't necessitate that A occurs before B in every frame of reference. Also recall the time-symmetry of microphysical laws, models of backward causation etc. — sime
As I explained already, this does not give a true representation of "final cause" because it provides no real basis for a distinction between consequences which are intended, and consequences which are accidental. In other words, if final cause was truly determinable from an agent's behaviour, all accidental acts by the agent would necessarily be intentional acts. — Metaphysician Undercover
Since temporal order is what defines causation, separating the two only renders causation as unintelligible. — Metaphysician Undercover
If we narrowly interpret the meaning of an "intention" as referring only to the agent's internal state, then intentions as such cannot be teleological, for the agent's actions are explainable without final causes. — sime
as jgill says, many maths educators are not the least interested in the philosophical question. — Wayfarer
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