Questions tagged [propositions]
The propositions tag has no usage guidance.
82
questions
4
votes
1
answer
28k
views
Difference between a sentence and a proposition in philosophy [closed]
Explain and illustrate the difference between a sentence and a proposition in philosophy
- 51
2
votes
2
answers
5k
views
Conjunctive and disjunctive assertions
I am a new learner to logic and philosophy, after spending some time reading Introduction to Logic by Copi, Cohen & McMahon, I'm stuck on this matter... please help me so I can read forward...
...
- 123
11
votes
8
answers
7k
views
What is the truth value of the proposition 'All unicorns are beautiful'?
If we let Fx denotes that which has the property of being a unicorn, and Gx denotes that which has the property of being beautiful, then this proposition would be signified by the following:
∀x(Fx→Gx)...
10
votes
5
answers
1k
views
Shouldn't statements be considered equivalent based on their meaning rather than truth tables?
Consider the following truth table, which serves to define the logical connective ⇔,
P | Q || P⇔Q
T | T || T
T | F || F
F | T || F
F | F || T
According to the above truth table, the logical ...
- 817
1
vote
1
answer
140
views
Alternate axioms for relevant logic R
Relevant logic system R can be defined -as I read in D. Palladino, C. Palladino, Logiche non classiche- by the following axioms
A→A
(A→B)→((C→A)→(C→B))
(A→(A→B))→(A→B)
(A→(B→C))→(B→(A→C))
A∧B→A, A∧B→...
2
votes
1
answer
105
views
A∧B-worlds and law of enrichment in Stalnaker semantics
In Stalnaker semantics a conditional A↦B is true in world u if either A is not logically possible (ex absurdo quodlibet holds in the semantics) or A is logically possible and B is true in the nearest ...
6
votes
2
answers
3k
views
How does one differentiate epistemological and ontological claims?
I'm taking an introductory philosophy course and I find it fascinating. I can't really figure out an assignment though because I'm a bit foggy on what the difference between ontological and ...
- 61