The general form of truth-function is:** ** **[,
, N()].**

This is the general form of proposition.

6.001 - 6.002
6.01 - 6.03

6.1 * (3)* The propositions of logic are tautologies.

6.2 * (4) *
Mathematics is a logical method.

The propositions of mathematics are equations, and therefore pseudo-propositions.

6.3 * (7)*
Logical research means the investigation of *all regularity*.
And outside logic all is accident.

6.4 * (5)* All propositions are of equal value.

6.5 * (4)*
For an answer which cannot be expressed the question too cannot be expressed.

*The riddle* does not exist.