Page:Wittgenstein - Tractatus Logico-Philosophicus, 1922.djvu/205

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INDEX

Problems, the deepest, are no problems, 4.003 (3)

Projection

and translation, 4.0141
method of, as thought, 3.11 (2)
possibility of, belongs to proposition, 3.13 (2)

Proof

in logic, a mechanical expedient, 6.1263
of significant proposition contrasted with proof in logic, 6.1263
of twice two, 6.241

Propositional connexion {Satzverband), 4.221

Propositional sign

as determining logical place, 3.41
cannot contain itself, 3. 332
defined, 3.12
elements of, 3.2
essential nature of, 3.1431 (1)
is a fact, 3.14, 3.143
relation of, to proposition, 3.12
sense of, needs no explanation, 4.02, 4.021
truth table as, 4.44, 4.442 (1)

Propositional variable

bar symbol for, 5.501
defined, 3.313 (3)
determination of values of, 3.316
expresses a formal concept, 4.126 (8)
every variable conceivable as, 3.314
relation to logical form, 3.315

Propositions

accidental features of, 3.34
about complexes, 3.24
all of equal value, 6.4
always complete pictures, 5.156 (4)
analysis of, 3.201, 3.25, 4.221 (1)
and truth possibilities of elementary prepositions, 4.4
are articulated, 3.141 (2), 3.251, 4.032 (1)
are compared with reality, 4.05
are composite, 4.032 (2), 5.5261 (1)
are descriptions of facts, 4.023 (3)
are expressions, 3.31 (2)
are expressions of their truth conditions, 4.431 (2)
are generalizations of elementary propositions, 4.52
are pictures of reality, 4.021
are truth-functions of elementary propositions, 5(1)
as configurations of objects, 2.0231
as functions of expressions, 3.318
as logical pictures, 4.01 (1), 4.03 (3)
as models of reality, 4.01 (2)
can say nothing about themselves, 3.332
cannot assert their own truth, 4.442 (3)
cannot be given sense by assertion, 4.064
cannot represent logical form, 4.12 (1), 4.121
completely generalized, 5.526 (1), 5.5261 (1)
content of, 3.13 (4)
denial of, 4.0641
determine one logical place each, 3.42
elementary
are truth-arguments of proposition, 5.01
assignment of truth-values to, describes the world, 4.26
cannot be given a priori, 5.5571
201