Community Digest

Top new questions this week:

What are the ethics of having children today?

Please receive this question as having come from a young person who wants to have children, but given the state of affairs (climate change, growing costs of living and wealth inequality, "technology", ...

ethics procreation  
asked by TCP 41 votes
answered by present 36 votes

How do proofs about logic fit into a logical framework?

I'm learning logic from Michael O'Leary's A First Course in Mathematical Logic and Set Theory. In chapter 1 he carefully explains the meaning of logical implication (p ⊨ q), logical inference (p ⟹ q), ...

logic proof symbolic-logic meta  
asked by WillG 6 votes
answered by Geoffrey 2 votes

Does the act-potency distinction lead to Meinong's jungle?

The Aristotelian-Thomistic distinction of act-potency is, among other things, supposed to solve Parmenides' paradoxes of change. Since change requires something non-existent popping into existence ex ...

metaphysics aristotle aquinas being change  
asked by Adam Sharpe 3 votes

Synthetic a priori judgments and Hinge Propositions

Is anyone aware of any books or articles that explicitly discuss the relationship between Kant’s notion of the Synthetic a Priori [judgment], e.g. “every color is extended,” "Nothing can be ...

kant wittgenstein  
asked by gonzo 3 votes

Is there a logical argument for the limit of knowledge?

It is justifiable to assert that certain knowledge could not be disseminated without the invention of writing. One could say that humanity needed the knowledge of writing before further knowledge ...

logic epistemology ontology knowledge  
asked by christo183 2 votes

Proving A ⊨ B iff ⊨A → B

Let A and B represent arbitrary formulas. Also let 1 ≡ True and 0 ≡ False Prove that A ⊨ B iff ⊨A → B For my proof, I break down the biconditional into two conditionals and prove each conditional. ...

logic proof propositional-logic  
asked by N. Bar 2 votes
answered by Mauro ALLEGRANZA 3 votes

Why is “The Name of the Rose” by Umberto Eco often regarded as postmodern?

Why is “The Name of the Rose” by Umberto Eco often regarded as postmodern? The only somewhat plausible explanation (yet I’m still quite sure that it is not correct) I’ve managed to come up with is ...

postmodernism materialism modernism  
asked by Zhiltsoff Igor 2 votes
answered by Joseph Weissman 1 vote

Greatest hits from previous weeks:

Examples of universalizable maxims in Kantian ethics

I'm taking a two year course on philosophy and ethics. At the moment, we're studying Kantian ethics. I understand Kant's theory of "act by a maxim that you would want universalized" and the three ...

ethics kant  
asked by kyle 7 votes
answered by Ram Tobolski 2 votes

What are the important effects of studying logic?

I'm working on my assignment in Logic and I'm having a hard time answering this question maybe because my insights about the subject isn't enough because we're just getting started, So can you please ...

asked by Ricardo 4 votes
answered by Guill 1 vote

If a person claims to know anything could it be disproven by saying 'prove that we are not in a simulation'?

Everyone starts out at 0 and if anyone wants to say that they know something they have to prove that claim. Is the counter to this person claiming that they know something logically correct? ...

logic epistemology fallacies simulated-universe  
asked by Rolf Haugaland 15 votes
answered by Speakpigeon 1 vote

Am I morally obligated to pursue a career in medicine?

I am a high school student who has no formal training in philosophy, so I apologize if this question seems naïve. However, it is one that I am currently facing in a life decision, and I would like a ...

ethics utilitarianism  
asked by David Zhang 106 votes
answered by Kaj_Sotala 112 votes

What did David Hume mean when he said that "reason is a slave to the passions"?

I don't understand the meaning of this oft-quoted quotation of Hume's in On Reason, namely his saying that "reason is a slave to the passions." What exactly does he mean by that ? Is it simply that ...

empiricism history-of-philosophy hume  
asked by Uticensis 38 votes
answered by loevborg 41 votes

Why distrust our senses?

It seems self-evident that the phenomena we sense are accurate and correlate to the real world. What sorts of philosophical arguments might cast doubt on this conviction in the veridicality of ...

epistemology reference-request phenomenology reality  
asked by brentonstrine 7 votes
answered by j-g-faustus 11 votes

Why do some people care so much about "empirical truth"?

Whenever you discuss philosophy, inevitably you will come across a type of person who holds empirical truth above all else, and will blatantly ridicule any discussion which has its onset in a paradigm ...

asked by geowo 33 votes
answered by Lee Daniel Crocker 97 votes

Can you answer these questions?

In Quine's ontology, why does a 'recognition' of something lead to ontological commitment while a 'feeling' does not?

We are discussing Quine's On What There Is in a metaphysics class I am in. I felt like I understood what he meant, that if something has to be predicated for in a sentence, we are ontologically ...

logic ontology modal-logic symbolic-logic quine  
asked by Matthew 1 vote
answered by J D 0 votes

Some questions about skepticism and the principle of knowledge?

What about this principle? ("if K (P - > ~ Q), then ~ k (~ Q) - > ~ k (P)") (if you know (P implies non-Q, then you don't know non-Q implies don't know P) I learnt about that Nozick gave an anti ...

epistemology knowledge skepticism david-chalmers brain-in-a-vat  
asked by AnduinWilde 1 vote

Did Stephen Hawking think that logic is contingent on physics?

According to this book*: Extrasensory Perception: Support, Skepticism, and Science, it says that Stephen Hawking thought that logic was contingent on physics, i.e that logic depends on the physics of ...

logic metaphysics philosophy-of-physics cosmology multiverse  
asked by vengaq 2 votes
answered by Hypnosifl 0 votes
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