Page:Wittgenstein - Tractatus Logico-Philosophicus, 1922.djvu/204

Rh Philosophy — continued
 * right method of, 6.53
 * value of questions about purpose of symbolism in, 6.211 (1)

Physical laws, refer to obejctsobjects [sic] of the world, 6.3431

Pictures
 * and logical space, 2.1 1
 * are compared with reality, 2.223
 * are facts, 2.14, 2.141
 * are models of reality, 2.12, 4.01
 * form of representation of, 2.15
 * have form of representation in common with reality, 2.16, 2.171
 * how linked with reality, 2.151, 2.1511, 2.201, 2.21
 * include representing relation, 2.1513
 * logical
 * are thoughts, 3.
 * propositions as, 4.03 (3)
 * the term defined, 2. 181
 * made by us, 2.1
 * none a priori true, 2.224, 2.225
 * possibility of, requires substance, 2.0212
 * propositions are, 4.012
 * propositions as, of reality, 4.021
 * represent their sense, 2.221

Possibility, 2.0122-3
 * and conceivability, 3.02
 * and form of representation, 2.151
 * and logic, 2.0121 (3), 5.473 (2)
 * and logical place, 3.411
 * and nature of the world, 3.3421
 * of atomic facts, 2.012, 2.0124
 * of connexion of things, 2.0121 (4)
 * of method of symbolizing, 2.3421
 * of projection, 3.13 (2)
 * of propositions, 4.0312 (1)
 * of states of affairs, 2.014, 2.202, 2.203
 * how shown, 5.525 (2)
 * of structure is form, 2.033

"Postulation" of "logical truths", 6.1223

Primitive ideas, formal concepts as, 4.12721

Primitive signs
 * how their meanings are elucidated, 3.263
 * names are, 3.26
 * of logic
 * as forms of combination, 5.46
 * need to be justified, 5.45
 * rules of definition apply to, 5.451 (2)
 * signify differently from non-primitive signs, 3.261 (2)

Principles, scientific, as a priori intuitions, 6.34

Probability
 * based on series of truth-functions, 5.1
 * does not apply to isolated propositions, 5.153
 * has certainty as a limiting case of, 5.152 (3)
 * involves general description of propositional form, 5.156 (2)
 * is a generalization, 5.156 (1)
 * measure of, defined, 5.15, 5151
 * needed in default of certainty, 5.156 (2)
 * of elementary propositions, 5.152 (2)
 * proposition
 * an extract from other proposition,s 5.156 (5)
 * has no special object, 5.1511
 * relation of experience to, 5.154(4)
 * relation to certainty, possibility, impossibility, 4.464 (2)
 * unit of, 5.155

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