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| Gentzen G. — The collected papers of Gerhard Gentzen |
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| Предметный указатель |
# 279
54
289
289
70 218
70 72 79 218
70 83 140 148 153 159 161 163 164 169 170 171 216 253 313
77 78 153
77 153
84
4 24 70 83 140 148 161 163 169 216 313
77 152 203
77 78 152 183 188 190 203
84
54 61
289
95
90
46
58
108
46 48 50
54 70 77 83 140 148 149 153 168 181 206 253 313
77 78
77 79 183 188 190
230 seq. 278
288
42
46 48
70 71 201
54 70 83 140 148 149 153 167 169 171 206 253 290 313
77 153
77 78 153
70 313
11 12 16 17 233 284 285 287
54 61 70 78 83 140 148 149 152 163 165 169 171 253 254 313
77 78 152 181 293 cf.
77 152 293
84
84
& 54 70 83 140 148 153 163 164 169 181 253 313
&-E 77 152 181 203 293
&-I 77 152 203 293
&-IA 83 84
&-IS 83 84
Abandonment of the natural concept of a sequent 255
Absolute consistency 9 14 138 228 237
Accessible ordinal number 192 195
Ackermann function 156
Ackermann, W. 12 14—16 24 27 23 53 54 56 57 61 65 68 74 86 103 104 114 117 156 214 216 236 240 313—316
Actualist 19 cf.
Actualist concept of a function 245
Actualist concept of a set 134
Actualist interpretation and intuitionism 235
Actualist interpretation and Skolem's theorem 241
Actualist interpretation and the continuum 242
Actualist interpretation and the stability of a reduction rule 173
Actualist interpretation of classical analysis 243 seq.
Actualist interpretation of Fermat's last theorem 162
Actualist interpretation of infinity 18 224 235 247
Actualist interpretation of transfinite propositions 162
Actualist mathematics and constructivism 248 250
Actualist mathematics and existence 248
Actualist meaning of 206
Actualist sense of transfinite propositions 162
Adequacy of the definition of a formula 142
Adjunction 151 152 cf. "Assumption"
Algebra 2 200 223 236
Als ob 19 28 cf.
Alternative forms of complete induction 155
An sich 18 19 28 134 cf.
Analysis 3 65 134 137 143 197 199 200 223 235 242 250 296 309 316
Analysis and infinite sets of objects 142 224
Anderson, J. 25
Antecedent formula 151 254
Antecendent 2 30 71
Antecendent formula 151 254
Antinomies of set theory 3 23 132—136 158 162 224 227 228 234—237
Antinomies of set theory and indirect existence proofs 235
Antinomies of set theory and infinity 234
Antinomies of set theory and logicism 237
Antinomies of set theory and the natural numbers 133 136
Applications of the Hauptsatz 103 seq.
Applied mathematics 249
Argument 71
Arithmetic 3 8 53 55 110 136 cf.
Arithmetic without complete induction 69
As if 18—21 23 28 201 250 cf.
Assumption 150 164 165 254 cf.
Assumption formula 74—76
Assumption, calculus 5
Assumption, formula 74—76 82
Assumptions in proofs 150
Auxiliary calculus 128 seq.
Auxiliary concept of "satisfaction" 33
Auxiliary symbol 70 71 217
Axiom 55 68 69 136 144 151 194
Axiom formula 55 56 111 112 114 309
Axiom formulae for equality 309
Axiom formulae of arithmetic 56 57 111 112 114 115
Axiom formulae of intuitionist logic 56
Axiom of Choice 214 217 221
Axiom of comprehension 216 220
Axiom of infinity 12 13 214 222 240 241
Axiom of infinity and consistency proofs 222 240
Axiom of reducibility 13
Axiom of set formation 216
Axiom system 2 3 39 238
Axiom system for analysis and Skolem's theorem 242
Axiom system for set theory 240
Axiomatic method 3 17
Axiomatic set theory 18 235
Axioms of elementary number theory 155—157
Axioms of geometry 68
Bachmann, P. 14 27 315
Bar-Hillel, Y. 28
Basic equality sequent 290 300
Basic formula 74 75 81 116 216
Basic logical sequent 151 154 177 179 257 290
Basic mathematical sequent 151 177 257 260 290
Basic sequent 13 83 123 151 257 290
Behmann, H. 315 316
Benacerraf, P. 28
Bernays, P. vi 1 2 6 8—10 20 24 26—28 201 313 315 317
Beth, E.W. 2 7 24—26 28
Black, M. 10 26
Bolzano, B. 3 24
Bound predicate variable 297
Bound variable 55 141 144 215 288
Brackets 54 71 141 215
Brouwer, L.E.J. 3 10 11 18 19 21 135 224 227 234 235 245—247 249 314—316
Calculability 245
Calculation procedure 158 159 161 175 239 244 245
Calculus 2 5 7 68 74 75 81 116 128 252
Calculus of natural deduction 2 7 68 81
Cantor, G. 3 10—12 16 26 230 242
Carnap, R. 315 316
Categorical algebra 2
Chain rule 180 seq.
Change of levels 281
Characteristic of an ordinal number 187
Characteristic significance of the characteristic for the reduction step 191
Choice 175—177 184 196—198
Choice set 217 222
Choice, set 217
Church, A. 24 27 239 240 245 315 316
Circulus vitiosus 134
CJ 293
CJ-inference figure 256 262 265 290
CJ-reduction 262 264
| Classical analysis 18 246 247
Classical arithmetic 3 4 53 56
Classical logic 4—6 53 66 68 103
Classical predicate logic 4—6 66
Classification of forms of inference 144 148
Classification of mathematics 223
Classification of the forms of inference 144 148
Closed sentence system 38 39
Cluster associated with a formula 267
Cluster of formulae 267 269 302
Clustered formulae 266 302
Combinatorial topology 223
Combinatorial topology and the consistency proof 200
Comparison of different concepts of a derivation 181 260
Complete induction 12 68 145 153 154 180 183 190 194 197 205 207 231 256 309 314
Complete induction and completeness 154
Complete induction and consistency proofs 8 139 194 197 198 212 262
Complete induction and constructivism 225
Complete induction and the complexity of proofs 232 284 309 311
Complete induction and the correlation of ordinal numbers 188
Complete induction and the cut 262
Complete induction and the finitist interpretation 166
Complete induction in a derivation 309
Completed infinity 225 230 245
Completed infinity and mathematical existence 248
Completeness and complete induction 154
Completeness and Goedel's theorem 240
Completeness of axiom systems 238
Completeness of formalisms 7 143 198 233 307
Completeness of the rules of inference 154
Complex functions 224
Complex of elements 30
Complexity extremum 262
Complexity of a derivation 259 275
Complexity of a proof and complete induction 311
Complexity of a proof and the ordinal numbers 11 261
Conclusion of a "chain-rule" inference 181
Conclusion of a cut 31
Conclusion of a syllogism 32
Conclusion of an inference 30 148
Conditional truth 82
Conjunction 70 cf.
Connective cf. also "Logical connective" "Logical
Connective, terminal 254
Consequence 2 3 33 cf.
Consistency 4 53 217 222 227 236 260 261
Consistency and constructive forms of inference 261
Consistency and derived concepts 157 193
Consistency and Goedel's theorem 197 229 232 233 236 238—240 284 287
Consistency and non-denumerability 247
Consistency and the axiom of infinity 222
Consistency and the empty endsequent 261
Consistency and the statability of a reduction rule 11 177 211 213
Consistency of analysis 12 15 16 136 227 232 236
Consistency of arithmetic 8 66 67 69 112 136 197
Consistency of arithmetic and Goedel's theorem 67
Consistency of classical arithmetic and Goedel's theorem 67
Consistency of classical predicate logic 103
Consistency of elementary number theory 4 8 132 136 228 240 287
Consistency of geometries 136
Consistency of intuitionist arithmetic 67
Consistency of intuitionist arithmetic and Goedel's theorem 67
Consistency of intuitionist predicate logic 103
Consistency of predicate logic 14 103 214
Consistency of propositional logic 214
Consistency of ramified analysis 14
Consistency of set theory 136 232 241
Consistency of the actualist interpretation 228
Consistency of the ramified theory of types 13
Consistency of the simple theory of types 13
Consistency proof 8 229 239 250
Consistency proof and algebra 200
Consistency proof and complete induction 8 139 194 197 198 212 262
Consistency proof and existential propositions 201
Consistency proof and Goedel's theorem cf. "Goedel's theorem"
Consistency proof and Hilbert's programme cf. "Hilbert's programme"
Consistency proof and indisputable forms of inference 138 171 193 228
Consistency proof and the natural calculus 252
Consistency proof and the statability of a reduction rule 11 177 211 213
Consistency proof and transfinite induction 8 231 232 261 286 297
Consistency proof for analysis 227 228 236 246 247 316
Consistency proof for elementary number theory 21 27 252
Consistency proofs and incompleteness 17 240
Constant symbol 70 111
Constant symbols 70 111
Construction rule 160 194 211 244
Constructive analysis and natural geometry 18
Constructive concept of a set 134
Constructive forms of inference in consistency proofs 261
Constructive, finitist, and intuitionist methods 18
Constructivism cf. also "Idealism"
Constructivism and complete induction 225
Constructivist 227 239 250
Constructivist (intuitionist) analysis 18 244
Constructivist and indirect existence proofs 250
Constructivist concept of a number 244
Constructivist interpretation and Skolem's theorem 241
Constructivist interpretation of analysis 243
Constructivist interpretation of infinity 224 seq. 237 286
Constructivist objections to classical analysis 226 227
Constructivist point of view and indisputable forms of inference 228
Constructivist principle of set formation 225
Constructivist proof of the theorem of transfinite induction 285 286
Constructivist techniques and Goedel's theorem 239
Constructivist techniques in proof theory 228 237 239
Constructivist-concept of a set 134
Continuum 20 243 250 251
Contraction 84 256
Contraction in the antecedent 84 cf.
Contraction in the succedent 84 129
Contradiction cf. also "Empty sequent"
Contradiction in mathematics 114 133 138 241 255
Contradictive derivation 261
Correctness of the rules of inference 159
Correlation of ordinal numbers with derivations 11 16 187 188 261 279
Correlation of values 305
Counterexamples 7
Craig, W. 7 25
Critical derivation 298 303
Critical reduction step 300 303 304
Curry, H.B. 6 18 21 24 25 28
Cut 2 5 15 31 32 84 256 312
Cut and complete induction 262
Cut and the Hauptsatz 5
Cut and the syllogism 32
Cut associated with a cluster 267 302
Cut element 31
Cut formula 256
D-formula 73
D-inference figure 73
D-S-formula 73
Davis, M. 24
Decidability of the predicate calculus and Fermat's last theorem 239
Decidable formula 269
Decidable formula in a proof 269
Decidable functions and predicates 160 174 194 199 211 288
Decidable predicate 160 174 194 199 211 288
Decidable proposition 159
Decidable propositions 160
Decision problem 6 66 69 238 239
Decision procedure 7 69 160 161
Decision procedure for predicate logic 239
Decision rule 161 198
Decision rule for predicates 160 198
Dedekind cut 224
Dedekind, R. 224 309
Deduction Theorem 311 cf.
Definability and the Herbrand — Gentzen theorem 7
Definite function 54 141
Definite number 141
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