INDEX

Mathematics — *continued*

- method of, working with equations, 6.234 (1)
- no accidental generality in, 6.031 (2)
- proof in, significance of, 6.232 (1)
- propositions of
- all self-evident, 6.234 (1)
- are equations, 6.2 (2)
- as links in inference, 6.211
- express no thoughts, 6.21
- show logic of the world, 6.22

- uses method of substitution, 6.24 (1)

Mauthner, 4.0031

Mechanics

- its generality, 6.3432
- nature of, 6.343
- relation to logic, 6.342

Microcosm, the, 5.63

Meaning

- of names, 3.3
- of primitive signs, 3.263

Modus Ponens, 6.1264 (2)

Multiplicity

- and number of dimensions of signs, 5.474
- and symbol for generality, 4.0411 (3)
- cannot be represented, 4.04 (1)
- the same in the proposition and the state of affairs represented, 4.04

Mystical, the, 6.44, 6.45, 6.522

Names

- are primitive signs, 3.26
- are simple signs, 3.202
- are simple symbols, 4.24 (1)
- are unanalysable, 3.26
- cannot be defined, 3.261 (2)
- cannot express sense, 3.142
- dispensable in describing the world, 5.526
- elementary proposition a connexion of 4.22
- have meaning only in context of proposition, 3.3
- how they occur in propositions, 4.23
- index of, 5.02 (i)
- no composition essential, 3.3411
- resemble points, 3.144 (2)
- the " real ", 33411
- variable, 3.314 (2)

Natural sciences

- are the totality of true propositions, 4. i (1)
- do not include philosophy, 4.111

Necessity: only logical necessity, 6.37

Negation (*See Denial*)

Negation (= Simultaneous denial)

- introduced, 5.5
- symbolized, 5.502

Newtonian mechanics, 6.341, 6.342 (2)

Nonsense (*Unsinn*)

- examples of, 5.5303, 5.5351 (2)
- impossible to judge, 5. 5422

Nonsensical, logical propositions not, 4.461 (1)

Notation (*See also Language*)

- arbitrariness of, 3.342
- essence of, 3.342
- "Number", a formal concept, 4.1272 (7, 8)

Number

- concept of, 6.022
- concept of equality of, 6.1022 (3)
- general form of, 6.022 (1), 6.03

Numbers

- as exponents of operation, 6.021
- definitions of, 6.02
- ordered by internal relation, 4.1252 (2)

"Object", a pseudo-concept, 4.1272 (1)

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