[FOM] A Query about Logical Content

[Alex Blum]

Ken Gemes wrote:

>...
>  Note, if AvB counts as part of the logical content of A then on the evidence of B one would have to say that part of A is true, and hence A is partially true. There are many other reasons for not counting AvB as part of the logical content of A. 
>
>The basic idea was to say X is part of the logical content of Y iff Y logically entails X and every relevant model of X can be extended to a relevant model of Y.
>  
>

Why would we want to say that if p implies q then having q confirmed it 
follows that  p is partially true.  For every proposition implies a 
necessary truth. We should thus be tempted to say that every proposition 
is partially true,e.g.,both 'p'  and  '~p' .

Alex Blum