All Questions
8 questions
3
votes
1
answer
108
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Good reasoning vs necessary truth-preservation vs validity
On pages 19-20 of Logic: The Laws of Truth, Smith argues that "good reasoning" cannot be equated with the properties of necessary truth-preservation (NTP) or validity on the following ...
- 493
1
vote
1
answer
167
views
What is the difference between a tautological corresponding conditional and (P v ~P)?
The Wikipedia article on the corresponding conditional contains the following sentence:
An argument is valid if and only if its corresponding conditional is a logical truth.
Some sources use "...
- 493
2
votes
2
answers
128
views
Is it possible to define argument validity as a formula?
Let A, B and C be propositions. Define ARG(A, B, C) as the following argument:
A.
B.
Therefore, C.
My goal is to create a formula whose truth value is equivalent to "ARG(A, B, C) is ...
- 206
2
votes
2
answers
456
views
Why is Truth the default designated value in logic and language?
It seems that investigations of language and logic have focused on truth as the assumed designated value (the value preserved by valid entailments). It is only in later, non-classical logic that non-...
-1
votes
4
answers
188
views
Is university research a guarantee for accuracy of theory?
Is university research a guarantee for accuracy of theory?
I think and speculate that no and on the contrary the "status" of academic degrees and university relationships are used to "validate" even ...
- 3,154
0
votes
0
answers
154
views
What are the Limitations and Vulnerabilities of Objectivity Biases?
How reliable is a "Logic / Objectivity" Bias when it comes to reasoning? Or, What are the potential limitations or vulnerabilities of relying solely on these bases of reasoning?
Note 1: &...
- 226
0
votes
1
answer
739
views
Is it valid to prove the axioms of a system from themselves? How does it square with Gödel's incompleteness?
I recently asked whether the axioms are tautologies, and got comments that seemed to me highly suspicious. Namely, that you can always prove an axiom from itself, that you can trivially say A ...
- 181
1
vote
3
answers
1k
views
If all the premises of an argument are true, is the argument logically valid?
Where an argument is said to be logically valid "if and only if it is not possible for the premises to e true and the conclusion false".
I know that the argument is indeed logically valid if all the ...
