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Questions tagged [paradox]

This tag is for arguments that produce an inconsistency with common sense.

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Unexplained paradox

According to Wikipedia, a paradox is: a statement that, despite apparently sound reasoning from true premises, leads to an apparently self-contradictory or logically unacceptable conclusion. A ...
luchonacho's user avatar
2 votes
1 answer
152 views

What are possible resolutions of the length unit paradox stemming from Zeno's Paradoxes?

The paradox in question: If every unit of length is made up of smaller units of length, it seems that you need to have units of length before a unit of length can come into existence. But this is ...
IgnorantCuriosity's user avatar
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1 answer
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Zeno's “Stadium” with the same metaphysical assumptions as his other paradoxes

“The Stadium” paradox is described by Aristotle as follows: The fourth argument is that concerning the two rows of bodies, each row being composed of an equal number of bodies of equal size, ...
viuser's user avatar
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3 votes
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Formulation and clarification of Zeno's arrow paradox

Is it correct to formulate Zeno's arrow paradox as follows? 1) If the arrow is still, it is not moving. 2) The flight of an arrow can be broken into instances, in all of which the arrow is still. 3)...
Wesley's user avatar
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2 votes
4 answers
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What would Nietzsche have said about moral relativism in leftwing politics?

The concept of superman or übermensch is someone that overcomes nihilism and learns to see above what's considered right or wrong. The latter is a leftist's trait, because right-wing mentality has ...
Yuri Borges's user avatar
1 vote
0 answers
69 views

Are paradoxes a necessary element of everyone representation of the world?

Introduction I stumbled upon the quotation Intelligence is to spot paradoxes. Wisdom is to live by them. from Raheel Farooq according to goodreads.com. I am here not so much interested in the ...
Remi.b's user avatar
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3 votes
1 answer
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Historiography of the Ship of Theseus

Does anybody know of a historiography or review of the discussion of the idea of the Ship of Theseus and things related thereto (I suppose this might also include Alan Gibbard's discussion of the ...
Miztli's user avatar
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1 answer
238 views

Is it provable that epistemically possible (possible for all I know) does not imply possible?

Here is an argument that it is not. Let's start with some equivalences: X is epistemically possible iff X is possible for all I know iff not (X is impossible given what I know) iff X is not ...
Tarkin's user avatar
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0 answers
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Is it a fallacy to argue that if something is much much more likely to occur then it is in fact the case?

Is it OK to argue that what is hugely more likely to occur is in fact the case? There seems to be a class of paradox that relies on the idea that what we think is the case is in fact much much less ...
anon's user avatar
  • 185
1 vote
1 answer
314 views

What resolves Zeno's argument for the non-existence of place?

Aristotle discusses six dialectical arguments for the non-existence of place in Physics bk. Δ On Place, ch. 1 (209a); Zeno's argument is #5: if everything that exists has a place, place too will ...
it's a hire car baby's user avatar
1 vote
7 answers
2k views

Are there any ways to resolve liar paradoxes?

I recently read an interesting book written about maths. But there was a whole chapter on paradoxes. There was a ''Looped liar paradox' described in it. It's something like: "On the front of of a ...
Mockingbird's user avatar
7 votes
9 answers
8k views

Is finding truth possible?

Consider the following argument: If want to know that something is true, I need to first know what is truth. If I need to know what is true, I need to find the truth. (Is there ...
DivineCoder's user avatar
1 vote
2 answers
2k views

Can a true statement also imply the opposite of itself?

It's unlikely that there could be a thesis that also is its own antithesis. Similarly, a formula usually isn't the "opposite" of itself if we use well-defined terminology. Somehow I have a notion ...
Niklas Rosencrantz's user avatar
2 votes
3 answers
3k views

The rule-following paradox : where is it?

There has already been a topic about this alleged paradox, from Wittgenstein: how can one know how to follow a rule, when any action can be made to agree with the rule ? The example mostly given to ...
Maxtimax's user avatar
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11 answers
2k views

Limitless Space

I know many talked about this, however I am not a professional philosopher, rather a mathematician. In mathematics we have the concept of infinity, so we speak about infinitely big things, we compare ...
Euler_Salter's user avatar
3 votes
3 answers
228 views

New riddle of induction; does the observer know the arbitrary time t?

Wikipedia, in "New riddle of induction", sets out Nelson Goodman's paradox as follows: Goodman defined grue relative to an arbitrary but fixed time t as follows: An object is grue if and only if ...
Mark Andrews's user avatar
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Can philosophy clarify these strange expressions? [closed]

I remember these two observations from when I was ten: the 2nd number is 2, but he 2nd from last is only 1 number away from the last (a+b)^2 =/= (a^2)+(b^2) BUT (10cm)^2 = (10^2)+(cm^2) Does it make ...
luke's user avatar
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2 votes
2 answers
156 views

Can't determine who is the author of this paradox

In some Japanese anime one of the characters presented the following paradox: “What do you do when there is an evil you cannot defeat by just means? Do you stain your hands with evil to destroy ...
André Carvalho's user avatar
3 votes
2 answers
296 views

Buridan's Ass Applied to God

Buridan's ass states a problem where a hypothetical donkey has to decide between two equal choices (food and water, an equal distance apart from the donkey). Since they are completely equal, neither ...
APCoding's user avatar
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3 answers
341 views

Is this a paradox?

A and B met a genie and the genie grant each of them a wish. A's wish: I wish that B's wish is not implemented B's wish: I wish that A's wish is implemented. Is this a paradox?
jyrwa's user avatar
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1 answer
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Does sarcasm that is meant to be misunderstood contain a liar sentence?

By sarcasm I mean an ironic statement which is, in its non literal meaning, meant to undermine. Irony means the opposite to what is said; it can have different meanings in the same context. e.g. the ...
user avatar
5 votes
7 answers
15k views

If everything is possible, is it possible for something to be impossible?

If everything is possible, is it possible for something to be impossible? Possibility and impossibility are modal notions; and are dual in the usual formulation; the SEP remarks: It would seem to ...
aDwarfNamedUrist's user avatar
11 votes
5 answers
6k views

What is the main message Kierkegaard is trying to deliver in his suicidal quote?

In his journal Kierkegaard wrote: I have just now come from a party where I was its life and soul; witticisms streamed from my lips, everyone laughed and admired me, but I went away — yes, the dash ...
HaneenSu's user avatar
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8 answers
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Why would this not resolve the Sorites paradox?

Bear with me here, I know nothing about philosophy that I haven't read on Wikipedia. I don't understand why the Sorites paradox is considered an unsolved problem in philosophy (according to Wikipedia)...
Matt Samuel's user avatar
-1 votes
1 answer
1k views

Can a sentence without a truth value be true?

I was doing some very, super, light reading on self reference. It seems to me that the statement nothing that I say is true both: cannot be understood with the T-schema; is self referential. - ...
user avatar
0 votes
1 answer
140 views

Can a paradox exist in another paradox? [closed]

Question is whether another paradox can exist inside another paradox when that paradox is happening?
Amruth A's user avatar
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1 answer
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Why is "similarity" not a logical relation? (from “Natural Kinds” by Quine)

I have two questions regarding Quine's paper “Natural Kinds”: Why isn't similarity a logical relation? Why is our ability to recognize similarity so fundamental? These two things are explained in ...
user22023's user avatar
5 votes
2 answers
309 views

Self-referring propositions

This proposition is false As you can see in the proposition above, there is a problem. This sentence can't be true, but it can't be false either. I believe that this issue comes from the fact that ...
Sunreef's user avatar
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3 votes
1 answer
454 views

Omnipotence Paradox Defense and Meinongianism/Neo-Meinongianism

I was considering a solution to the omnipotence paradox in which excluding logical impossibilities from the definition of omnipotence is justified as follows. Consider the proposition, "God could ...
user20658's user avatar
  • 135
6 votes
2 answers
243 views

Dialetheias in the absence of contraction/absorption?

One of the arguments given for dialetheism is that the paradoxes of self-reference, such as the Liar paradox and Russell's paradox, are most naturally regarded as dialetheias (both true and false). ...
Mike Shulman's user avatar
4 votes
1 answer
9k views

Zeno's arrow paradox

Zeno's arrow paradox: Zeno states that for motion to occur, an object must change the position which it occupies. He gives an example of an arrow in flight. He states that in any one (duration-less)...
Our's user avatar
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-1 votes
2 answers
245 views

Zeno's paradox (Dichotomy)

Suppose Homer wants to catch a stationary bus. Before he can get there, he must get halfway there. Before he can get halfway there, he must get a quarter of the way there. Before traveling a quarter, ...
Our's user avatar
  • 149
9 votes
3 answers
1k views

What's the current status of the "paradox of analysis"? And are there any strong and widely accepted resolutions?

It would seem that figuring out a solution to the paradox of analysis would be of prime importance to philosophers, especially considering the fact that conceptual analysis seems central to ...
Pete1187's user avatar
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0 votes
3 answers
1k views

Is this a valid solution to the liar paradox?

Example: Is the statement "These letters are black." true or false? If the letters are black, then the statement is true. If the letters are not black, then the statement is false. In this example ...
IgnorantCuriosity's user avatar
2 votes
1 answer
479 views

What is the name of this "paradox" about predictions?

The scenario goes thus: There is a prediction machine which predicts very accurately but always states its prediction, and a boy who always defy what he is told. If the machine predicts that the boy ...
user289661's user avatar
4 votes
1 answer
159 views

Why do "mudslinging" arguments about opponent's morality create a regress?

Consider this situation: Politician A "slings mud" at Politician B. Politician B accuses Politician A of being a mudslinger Politician A accuses B of being a hypocrite since accusing someone of being ...
user20502's user avatar
  • 387
1 vote
1 answer
129 views

Russel's paradox compared to Aristotle's logic

How can we easily explain what Russel might mean about Aristotle's logic? Did I understand correctly that, loosely speaking, if we have a statement in Aristotle's logic for example: No human being ...
Niklas Rosencrantz's user avatar
3 votes
1 answer
3k views

Is there a logic of married bachelors?

I'm sure this question must have a simple clarification, but I am largely unfamiliar with the branches of formal logic and not sure where to look for it. We know that "All bachelors are unmarried men"...
Nelson Alexander's user avatar
2 votes
2 answers
621 views

What makes the "lazy arguments" (you have no chance, so don't bother) valid or invalid?

What I am thinking of is not exactly like the Lazy argument described in Wikipedia. I am thinking of a general argument where a normative conclusion towards inaction is drawn from the knowledge of the ...
user20502's user avatar
  • 387
1 vote
3 answers
229 views

Is immortality worth any risk? [closed]

The following seems like a bit of a paradox, so without assuming that immortality would end up a curse due to personal suffering, how could someone respond to the following? Suppose you have the ...
user avatar
12 votes
5 answers
2k views

Was Kant anticipating Gödel's incompleteness in his antinomies?

Kant's attempts to prove that there's a limit to pure reason based on the existence of antinomies, i.e. pairs of propositions where each one is rational, but the propositions contradict each other. ...
Alexander S King's user avatar
8 votes
8 answers
466 views

What name or label applies to a statement the very act of making which contradicts its truth?

Consider a proposition stating something to be true that by the very act of stating denies truth to the speaker. This is not a fallacy, which is an argument incorrect by virtue of its form. But I am ...
Milica Jovanovic's user avatar
1 vote
1 answer
117 views

A implies ¬A. Is my reasoning on the following example correct?

Oh, you// anything that rhymes is not true. If this statement is true, then it is false. First, although it seems very logic to me, is this reasoning correct? If so, how do you call this kind of "...
derthomas's user avatar
1 vote
1 answer
267 views

"Always is always wrong" [closed]

Is this a paradox? I am too drunk to think it through (forgive my idiocy!). If it is - can a paradoxical solution be qualified as "wrong"? If so, is "always is always wrong" actually an explicitly ...
Poemandres SugarKane Humblehof's user avatar
6 votes
6 answers
730 views

Does the logical tautology "what will happen, will happen" imply the impossibility of free will?

The statement what will happen, will happen is true by definition (right?). But to me that also implies that as long as time is linear, the future is predetermined (and hence there is no free ...
Heisenbugs's user avatar
15 votes
7 answers
3k views

Are all paradoxes reducible to one "fundamental" paradox?

I may need to refine this question, since I am mostly grappling with a murky intuition and haven't yet done the real work. When I encounter many of the well-known paradoxes, such as Zeno's dichotomy, ...
Nelson Alexander's user avatar
6 votes
3 answers
354 views

What is the best philosophical expression for the "mutual containment" of mind and body?

The old "ouroboros" of mind and body reappears in various forms. Basically, the world is formed within consciousness; consciousness is formed within the brain; the brain is formed within the world. ...
Nelson Alexander's user avatar
28 votes
7 answers
5k views

Why is Aristotle's objection not considered a resolution to Zeno's paradox?

It seems to me, perhaps naïvely, that Aristotle resolved Zenos' famous paradoxes well, when he said that, Time is not composed of indivisible nows any more than any other magnitude is composed of ...
martin's user avatar
  • 687
11 votes
3 answers
3k views

Are there rules for dealing with self-reference "paradoxes" in logic?

My favorite paradox that leads to an endless regress, and also leads to a question: The sentence after this is true. The sentence before this is false. When contradictions appear in proofs, we have ...
hellyale's user avatar
  • 803
5 votes
1 answer
447 views

What is the "simple logical truth" that makes omniscience self-contradictory?

Patrick Grim claims in "Problems with Omniscience" that there is a "simple truth well established as a logical theorem", which shows that omniscience is a contradictory concept. I am failing to see ...
Henry's user avatar
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