79. The definition “A Proposition is whatever can be true or false”. –
The words “true” and “false” are items in a particular notation for the
truth-functions.
Does “ ‘p’ is true” state anything about the sign ‘p’?
a proposition is a proposal – you can assent to the proposal or dissent
from it
as with the proposal – your assent or dissent – is open to question – open
to doubt – uncertain
truth functional calculus – is a language-game – a logic game
the concepts – the operations of the game – are like those of any game –
open to question – open to doubt
the history of modern logic is testament to this
however if you play the game –
you play within its terms –
the game as played has no
place for question – for doubt – for uncertainty
does “ ‘p’ is true” state anything about the sign ‘p’?
no
© greg t. charlton. 2014.