168.
But now, what part is played by the presupposition that a substance A
always reacts to a substance B in the same way, given the same circumstances?
Or is that part of the definition of a substance?
what part does such a presupposition play?
like any presupposition –
it will function as a basis for thought and
action
it will provide a focus
even if it is part of the definition of a
substance –
like any proposal –
it will be open to question –
open to doubt
© greg t.charlton. 2009.