All Questions

0
votes
1answer
62 views

Is there a fallacy

I want to know if there is a fallacy in this type of conversation. CA=Country A and  HRA=Human Right Association Example: CA: it is now gonna be forbidden in CA for feminist to express their ...
1
vote
2answers
98 views

Can math be done without syllogisms? [closed]

Question seems self explanatory. Is there anything in mathematics that can be stated to be true without using a logical syllogism? Had a discussion with somebody about this recently. Sorry if this is ...
1
vote
1answer
63 views

Propositional logic problem

My question is how should I use propositional logic rules for → and ↔ (although other rules may be required) to prove the following: A → B, B → C ⊢ (AvB) → C A ↔ B ⊢ ¬A ↔ ¬B Please use the ...
2
votes
1answer
121 views

Cyclical Argument in Plato's Phaedo

Can anybody tell me in simple words the major objections to the Cyclical Argument in Plato's Phaedo ?
2
votes
0answers
92 views

Why don't two equivalent propositions contribute to the same semantics?

We often have 2 propositions that have the same truth table, in that they are true and false given the same conditions. Nevertheless, we still feel as though there different semantics (i.e meaning..),...
5
votes
1answer
120 views

Inferring from (∃x)Fx to (∃x)(∃x)Fx using existential generalization?

I was introduced to EG as follows (for some name 'a'): One can infer from Fa to (∃x)Fx. But today within a proof my professor posted he used EG to infer from (∃x)Fx to (∃x)(∃x)Fx. I'm not sure how ...
4
votes
3answers
175 views

Morality of infanticide

The Spartans had a tradition of discarding infants that were physically weak or deformed. When I was younger, I thought this practice is cruel and absolutely immoral. But nowadays I'm not so sure. In ...
1
vote
0answers
55 views

Was there any valid criticism of Hegel's Phenomenology of Spirit?

I only saw criticisms levied against him from people who have never read the book, so I was wondering if there was any valid criticism levied against the ideas from the book. Arthur Schopenhauer ...
-1
votes
0answers
68 views

The Curry-Howard correspondence & Classical Logic

The Curry-Howard correspondence is supposed to show that a computer programme is effectively equivalent to a formal logical proof. However, I would expect that the correspondence is really between a ...
8
votes
1answer
390 views

If turtles see everything, and nothing seen can see, does it follow that non-turtles exist?

Consider the following argument: Turtles see everything. Seeing is asymmetric (for the sake of argument). Therefore, something is not a turtle. I have problems symbolizing these statements. My ...
5
votes
3answers
222 views

Is symmetry real?

Ask almost anyone, and they'll hold up their hands, put them together and say "there you go!" Except, your hands aren't really symmetrical. In fact every "symmetry" I can think of suffers from this '...
4
votes
1answer
188 views

How does philosophy not fall into the confirmation bias?

Daoism and Buddhism in Eastern philosophies emphasize adaptation and flexibility, and critique rationality. They have different frameworks to understand the same phenomenon, and different goals for ...
2
votes
1answer
39 views

What Latin phrase did Descartes use to denote his Cartesian demon

I'm referring to the "evil demon", "malicious demon", "evil genius", etc, depending on translation. I'm looking for the original latin phrase.
0
votes
1answer
29 views

What can did Pythagoras mean by Power and Necessity?

The "Golden Verses" write that "Power is a near neighbour to necessity." Does anyone have an idea about what could that mean?
2
votes
1answer
62 views

Is unhappiness a principle of utility for any moral philosopher?

G. E. M. Anscombe criticizes the following happiness principle of utility in Modern Moral Philosophy as an adequate judgement for moral behavior (midway, page 7 of the link): "The greatest ...
0
votes
0answers
23 views

What is the relationship between knowledge and light that Plato presents in the Cave Allegory in Book Seven of his Republic?

I think: Light represents truth in the allegory. The prisoners only see shadows that are cast by light but are never able to see the source of that light. How about you?
2
votes
1answer
73 views

How to prove or disprove validity of ◻◻p → ◻p in the frame (Q,<) of the rational numbers with the usual less-than ordering?

I was wondering if someone can perhaps help with this proving. I am not sure how to handle a temporal frame that is not a set of only natural numbers. Any suggestions? Thank you.
3
votes
1answer
45 views

Does the adjective “physical” apply only to worlds that obey the laws of physics? [duplicate]

Note: My question assumes a conceptual distinction between minds and the external world, regardless of whether they're actually two different kinds of substances. There seems to be widespread ...
4
votes
1answer
284 views

What is the relevance of applicability to the natural sciences in pure mathematics?

I think I am coming to a good, new understanding of the relationship of pure mathematics to the natural sciences. A major concern of mine is just how reliable is rigorous (characteristically "pure") ...
2
votes
2answers
119 views

Is beauty a property?

If beauty is not a property, because it is subjective, then why is the color red a property? Seeing a color is subjective, not only it is subjective, but we cannot confirm we see the same color, and ...
1
vote
1answer
80 views

What does Aristotle mean by this text?

Poetry in general can be seen to owe its existence to two causes, and these are rooted in nature. First, there is man's natural propensity, from childhood onwards, to engage in mimetic activity (and ...
1
vote
6answers
130 views

Can a theory that is now wrong be right in the future?

For example we take as granted that energy is conserved (Energy conservation Principle). Imagine someone “build” a theory where the energy conservation doesnt apply. Scientific community should reject ...
0
votes
2answers
113 views

How is egalitarianism even possible? [closed]

How is egalitarianism (broadly, any idea about equality between humans) even possible? I find it hard to chew as to how can egalitarianism be demonstrated to even exist in any, even simple sense. ...
1
vote
1answer
56 views

What does Augustine suggest that the slave do instead of killing his master?

I was just wondering this question from Book One of Augustine's On Free Choice of the Will
4
votes
1answer
127 views

The Anonymous Internet: Philosophical opinions?

People have been commenting "off the record" for ages. However, the Internet has made pseudonyms a major meme. Indeed, anonymity on the Internet may be the default choice for the majority of people ...
3
votes
2answers
138 views

Which logical fallacy is this: A is a C, B is a C, therefore A is a B?

Does this kind of logical fallacy have a name? Apples are fruit. Oranges are fruit. Therefore, apples are oranges. I'm guessing it's a particular kind of statistical syllogism?
1
vote
1answer
41 views

Ontological argument (existence is part of essence) and an implication

God has attributes: Omnipotent Righteousness Eternity Goodness Etc... All of them in his maximum expression. Man has the negation of all that attributes in his maximum expression. Therefore, man ...
2
votes
3answers
147 views

Plato's cave in reality

Does anyone know the system we live in? Is it something abstract like that described in the movie The Matrix? It exists. Why does it cost others their lives like Socrates? Lastly, do philosophers ...
-1
votes
4answers
317 views

Have I contradicted the “law” non-contradiction?

In the 2nd half of the 20th century the American mathematician Haskell Curry and logician William Alvin Howard discovered an analogy between logical proofs and working computer programs. This is known ...
23
votes
15answers
4k views

How can animals be objects of ethics without being subjects as well?

Most people seem to agree that animals cannot act immorally, even when they inflict suffering. They are thus completely excluded from being subjects of any kind of ethical framework. At the same time,...
0
votes
2answers
65 views

The illogical nature of want/motivation and its effects on free will

Are all the decisions and desires of humans made in order to stimulate pleasure centers and avoid pain? If so, could someone/thing which is unable to feel pleasure and pain, and only had the power of ...
2
votes
2answers
67 views

What's this historiographic method of argumentation used by Foucault?

I heard that Foucault, the French philosopher, uses this historiographic method of argumentation. What is this and is this a method of argumentation like Socrate's dialectic (not saying that they are ...
2
votes
0answers
46 views

Does the idea that universe obeys logical laws paradoxical?

Sorry if this is the wrong place, I've asked this question elsewhere, and I've been told this place is better for this. Here is the idea: The universe obeys logical laws or it does not. If it does ...
3
votes
2answers
67 views

Kant and the absolute a priori

Frome the Critique of Pure Reason: "First, then, if a proposition is thought along with its ne­cessity, it is an a priori judgment; if it is, moreover, also not derived from any proposition ...
1
vote
1answer
66 views

If everything is ruled by determinism, what rules determinism itself?

If everything is ruled by determinism, what rules determinism itself? Has any philosopher ever explored this matter?
35
votes
11answers
14k views

Is it a fallacy if someone claims they need an explanation for every word of your argument to the point where they don't understand common terms?

Is it a fallacy if someone claims they need an explanation for every word of your argument to the point where they don't understand common terms? For example, suppose someone said, "If a dog bites ...
1
vote
2answers
78 views

What would a hypothetical world of continuous matter look like? [closed]

Suppose, instead of molecules and atoms existing, there was only prime matter and types of prime matter. So there would be steel type of prime matter, flesh type of prime matter, etc.... How would ...
3
votes
4answers
90 views

Is a Reflection on a Bus, part of the Bus?

Riding the bus I wondered to myself what does it mean to be a part of this bus. From a physics/ computer vision interpretation one may collect all parts that are moving in unison with the larger whole ...
1
vote
3answers
98 views

Are there any strong arguments for ideas that cannot be defined by humans? [closed]

I feel like there are no concepts we cannot define, theoretically at least. Is there any argument suggesting the exact opposite? How strong is that argument?
4
votes
1answer
99 views

Self refuting pillar of postmodernism

One of the defining tenets of posmodernism is "incredulity towards meta narratives". However, with its ubiquitous emphasis on the oppression of power structures and the consequent victim mentality ...
0
votes
0answers
25 views

Compositional relations vs definitional relations, always distinct kinds of relations?

Are compositional (mereological) relations always distinct from definitional relations, or can compositional relations be considered definitional relation in some cases? Does this depend on whether we ...
1
vote
0answers
46 views

Philosophy of great thinkers [closed]

What are the basics to learn and examine the philosophy of famous thinkers without developing a biased attitude?
12
votes
3answers
1k views

What essential properties make us human?

(Correct me if I am wrong) In ontology, essentialism is the belief that object O has property P, property P is therefore an ESSENTIAL property if there is something else which is not property ...
2
votes
2answers
68 views

What are the most objective ethical systems ever devised? [closed]

Ethics are often based on logic and emotions, but was there any effort to remove the emotional part and systematize ethics? What are some of the systems derived from such efforts?
2
votes
3answers
120 views

What are some true paradoxes in philosophy?

Some logical paradoxes are known to be invalid arguments, so I want to know what are some of the paradoxes based on valid logic in philosophy. So could you identify some of them?
1
vote
4answers
127 views

Would philosophy still exist if there was no life? [closed]

Would philosophy still exist without life? For example, for us humans, philosophy answers big questions and sort of governs society. But is philosophy something that would exist without life? On this ...
2
votes
4answers
174 views

Is consciousness considered a resolved/able problem?

Is the existence of qualia generally considered an unresolved problem by philosophers? Is there a consensus on its nature or whether it can be studied at all?
2
votes
3answers
67 views

How would you discredit this faulty argument?

Let's say I'm trying to argue that a certain activity is inherently dangerous and to be avoided at all costs, even though it is only dangerous if it is done without care, for example, driving a car.* ...
1
vote
3answers
82 views

What are some of the paradigm shifts in how we think about logic and rationality in the history of philosophy [closed]

I am wondering if there was any shift or big revelations about logic that occurred in the history of philosophy. I am thinking it's highly likely, because if you read some of the thinkers during ...
2
votes
2answers
92 views

Does this idea have a name: “A is a type of B, but B is not a type of A”

This question has been touched on in other questions but not answered in a way that fully answers my own question. Like here: Argument "a is b" but "b is not a" valid? What is ...

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