Skip to content
Carmelics
Topics
Thinkers
Changes
Contributors
Loading account…
Statements
321,452
Perspectives
108,905
Topics
42
Home
/
Original
/
inverse
See Original
Inverse View
It is not the case that The key to ensuring the applicability of detachment is finding a common substitution instance of the minor premise and the antecedent of the major premise
?
Set your confidence on the premises below to see your aggregate.
Reasons For
2 perspectives
Reason for 1 of 2
?
1.
Frege's context principle holds that terms acquire meaning only within propositional contexts, not through isolated substitution matching.
?
How convincing is this?
Think about whether this reason is strong or weak
2.
If meaning is context-dependent, then syntactic unification of term-variables underdetermines semantic applicability of detachment.
?
How convincing is this?
Think about whether this reason is strong or weak
3.
Therefore, finding a common substitution instance is insufficient without prior semantic grounding of the matched expressions.
?
How convincing is this?
Think about whether this reason is strong or weak
Reason for 2 of 2
?
1.
Relevant logicians (Anderson & Belnap) argue that detachment requires a relevance connection between premises, not mere formal unifiability.
?
How convincing is this?
Think about whether this reason is strong or weak
2.
A common substitution instance can be found between premises that share no content-relevant connection, as in Lewis's paradoxes of material implication.
?
How convincing is this?
Think about whether this reason is strong or weak
3.
Thus syntactic unification is not sufficient to ensure the legitimate applicability of detachment, contra the claim.
?
How convincing is this?
Think about whether this reason is strong or weak
Reasons Against
1 perspective
Reason against
?
1.
Detachment requires that the minor premise and the antecedent of the major premise be matched
?
How convincing is this?
Think about whether this reason is strong or weak
2.
Unification is the process by which such a common substitution instance is found
?
How convincing is this?
Think about whether this reason is strong or weak
Next step
Based on where you are in your exploration
Strongest counterpoint
Explore the most compelling reason on the other side.