HOME TOP UP PREV NEXT 1 2 3 4 5 6 GERMAN MAP Tractatus Logico-Philosophicus 4.4
Absence of this mark means disagreement.
The groups of truth-conditions which belong to the truth-possibilities of a number of elementary propositions can be ordered in a series.
In the one case the proposition is true for all the truth-possibilities of the elementary propositions. We say that the truth-conditions are tautological.
In the second case the proposition is false for all the truth-possibilities. The truth-conditions are self-contradictory.
In the first case we call the proposition a tautology, in the second case a contradiction.