128135

BRACERS Record Detail

To access the original letter, email the Ready Division.

Collection code 
RA1
Class no. 
750
Document no. 
.00000001
Box no. 
11.16
Source if not BR 
Recipient(s) 
Wieluch, Doman
Sender(s) 
BR
Date 
1963/12/06
Enclosures/References 
Form of letter 
ALD
Pieces 
1
BR's address code (if sender) 
PP
Notes, topics or text 

Re whether logic consists of tautologies. "I do not agree with your opinion because I have a different definition of logical propositions from yours. You think of logical propositions as 'abstract patterns of possible classes of tautologies'. I think of them as general propositions from which particular examples may be deduced. Let us take an example: Whatever propositions p and q may be, p or q together with not-p, entail q. I should call this a proposition of logic. I should not call an instance of it a proposition of logic if the instance contained any empirical material. For instance: 'If Socrates was either Roman or Greek and was not Roman then he was Greek'. I should not regard this as a proposition of logic because it contains the empirical words 'Socrates', 'Roman' and 'Greek'."

Filed 
Published 
Russell letter no. 
Permission 
Everyone
Thread 
Reel no. 
Frame no. 
Record no. 
128135
Record created 2015/05/20
Record last modified 2015/05/20
Created/last modified by wolfeaa