国家食品药品监督管理总局召开打击保健食品“四
百度 ”
Philosophy of logic is a branch of philosophy concerned with investigating the nature, scope and role of logic.
46 questions from the last 365 days
3
votes
5
answers
649
views
Confusion in regards to a passage in "Introduction to Logic" by Alfred Tarski
PASSAGE OF THE BOOK IN QUESTION:
When we set out to construct a given discipline, we distinguish, first of all, a certain small group of expressions of this discipline that seem to us to be ...
- 77
3
votes
8
answers
1k
views
If a mathematical theorem is true, what it is true of?
Do mathematicians believe that a theorem provides knowledge?
If a theorem is true, it is true of what, according to mathematicians?
Thank you for any scholarly reference.
- 11.3k
3
votes
2
answers
99
views
What sort of fallacy is it when the reasoner argues from within too narrow a context of an issue?
Sometimes, people reason unacceptably when a critique or command given within a certain context is assumed to be valid only within that context. This is obviously an example of poor judgement in the ...
3
votes
3
answers
277
views
Is there a middle ground between demonstrative and probabilistic reasoning?
There are certain things that I feel confident of, things that I feel confident of almost in a demonstrative sense, and yet I find it troubling to articulate it in that matter. It is hard to come up ...
- 7,394
0
votes
1
answer
46
views
Would Robert Nozick's "principle of plenitude/fecundity" include worlds based in different logics?
Robert Nozick's proposed his "principle of plenitude" or "principle of fecundity" where he proposed that all possible worlds would exist (a very similar position to that from David ...
- 757
2
votes
1
answer
174
views
What are the rational arguments for and against the idea that logical reasoning is always reducible to a logical calculus on some classes of things?
What rational arguments have been proposed for and against the idea that logical reasoning can always be reduced in principle to a logical calculus on some classes of things?
Thank you for any ...
- 11.3k
-2
votes
1
answer
107
views
Is there a theory which is the true theory of logical reasoning?
Is there any theory of which any logician would be prepared to say that it is the true theory of logical reasoning?
If there is one, which is it, and who says that it is the true theory of logical ...
- 11.3k
3
votes
3
answers
368
views
Explain the nomative-theory meaning of “all-things-considered” to a high school philosophy student?
'The term "all things considered" does indeed have a semi-technical sense in normative theory.' How would you define “all things considered”, a nominative absolute, to a 16 year old student? ...
- 51
6
votes
5
answers
1k
views
Is logical reasoning deterministic?
Is logical reasoning deterministic? That is, will every individual, when reasoning correctly, arrive at the same conclusions as every other individual? Basically, this means that everyone will arrive ...
- 9,572
1
vote
1
answer
107
views
Does the Gap-Theorist response towards the strengthened liar suffice?
In three-valued logic, primarily Kleene's three-valued logic, we have the set of truth values being S = {F, U, T} where F = "False", T = "True", U = "Undefined". We can ...
- 21
0
votes
1
answer
80
views
Clarification of Notion vs. Concept in Logic [closed]
I’m trying to understand the following excerpt from Institutes of Logic (1885) by John Veitch:
"As the sum of notes or marks in which a plurality of objects agree, it is a Notion; as that by ...
11
votes
6
answers
2k
views
Does fallibilism extend to logic?
This question is slightly motivated by a similar discussion about "Necessarily true propositions", which took a focus on modality and mathematical truths. Here I am interested in whether ...
- 125
2
votes
0
answers
53
views
Am I misinterpreting Grim's [93] paper about graphs of truth-value assignments to liar-like sentences?
Here's the "offending" graph (i.e. the one that's "confusing" me (see further below)):
This picture very strongly reminds me of something with frequently-crustacean features/...
- 3,836
-5
votes
1
answer
90
views
What is the reference of the phrase "the planet Venus"? [closed]
What is the reference of the phrase "the planet Venus"?
- 11.3k
2
votes
2
answers
100
views
What has been the influence on formal logic of Frege's 1892 distinction between sense and reference?
How exactly Frege's distinction between sense and reference, which he introduced in his 1892 Uber Sinn Und Bedeutung, influenced the development of formal logic at the time, if at all?
- 11.3k