On 5/28/2012 1:37 AM, Bruno Marchal wrote:
I am mute on the subject of whether p is true in any other
world (unless I can use an axiom like the above).
By the logicians notion of proof, if you prove a proposition, it is true in all
But the 'worlds' are defined by the axioms and rules of inference. So you could change or
add axioms and get different 'worlds'. In this logicians idea of 'world' it is not the
case that you only prove things in the one world you're in.
You received this message because you are subscribed to the Google Groups
"Everything List" group.
To post to this group, send email to email@example.com.
To unsubscribe from this group, send email to
For more options, visit this group at