The propositions of logic therefore say nothing. (They are the analytical propositions.)
6.111 Theories which make a proposition of logic appear substantial are always false.
Once could e.g. believe that the words "true" and "false" signify two properties among other properties,
and then it would appear as a remarkable fact that every proposition possesses one of these properties.
This now by no means appears selfevident, no more so than the proposition "All roses are either yellow or red" would seem even if it were true.
Indeed our proposition now gets quite the character of a proposition of natural science
and this is a certain symptom of its being falsely understood.
6.112
The correct explanation of logical propositions must give them a peculiar position among all propositions.
6.113
It is the characteristic mark of logical propositions that one can perceive in the symbol alone that they are true;
and this fact contains in itself the whole philosophy of logic.
And so also it is one of the most important facts that the truth or falsehood of nonlogical propositions
can not be recognized from the propositions alone.
