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Imaginary element

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354: 293: 72: 17: 285: 255: 372: 331: 147: 68: 8: 120: 104: 343: 319: 116: 350: 289: 127: 40: 311: 244: 278: 327: 123: 349:, Studies in Logic and the Foundations of Mathematics (2nd ed.), Elsevier, 338: 273: 90: 366: 259: 251: 228:
if every model of that theory does (and similarly for uniform elimination).
28: 32: 323: 315: 262:
with at least 3 elements does not have elimination of imaginaries.
164:
is an equivalence formula φ together with an equivalence class
345:
Classification theory and the number of nonisomorphic models
302:
Poizat, Bruno (1983), "Une théorie de Galois imaginaire. ",
238: 342: 277: 364: 217:if the formula θ can be chosen independently of 247:has uniform elimination of imaginaries. 14: 365: 337: 301: 272: 52: 44: 39:of a structure is roughly a definable 190:) such that there is a unique tuple 24: 215:uniform elimination of imaginaries 25: 384: 194:so that the equivalence class of 241:has elimination of imaginaries. 178:if for every imaginary element 89:-tuples of variables, for some 58: 13: 1: 266: 43:. These were introduced by 7: 232: 10: 389: 286:Cambridge University Press 226:elimination of imaginaries 176:elimination of imaginaries 49:elimination of imaginaries 304:Journal of Symbolic Logic 182:/φ there is a formula θ( 198:consists of the tuples 148:equivalence relation 126:. Its domain is the 101:equivalence formula 258:at least 2 over a 51:was introduced by 356:978-0-444-70260-9 295:978-0-521-30442-9 155:imaginary element 41:equivalence class 37:imaginary element 16:(Redirected from 380: 359: 348: 334: 310:(4): 1151–1170, 298: 283: 245:Peano arithmetic 21: 388: 387: 383: 382: 381: 379: 378: 377: 363: 362: 357: 339:Shelah, Saharon 316:10.2307/2273680 296: 274:Hodges, Wilfrid 269: 235: 61: 23: 22: 15: 12: 11: 5: 386: 376: 375: 361: 360: 355: 335: 299: 294: 268: 265: 264: 263: 248: 242: 239:ZFC set theory 234: 231: 230: 229: 222: 211: 169: 151: 150:on its domain. 97: 91:natural number 76: 60: 57: 31:, a branch of 9: 6: 4: 3: 2: 385: 374: 371: 370: 368: 358: 352: 347: 346: 340: 336: 333: 329: 325: 321: 317: 313: 309: 305: 300: 297: 291: 287: 282: 281: 275: 271: 270: 261: 257: 253: 249: 246: 243: 240: 237: 236: 227: 224:A theory has 223: 220: 216: 212: 209: 205: 201: 197: 193: 189: 185: 181: 177: 173: 170: 167: 163: 159: 156: 152: 149: 145: 141: 137: 133: 129: 125: 122: 118: 114: 110: 106: 102: 98: 95: 92: 88: 84: 80: 77: 74: 70: 66: 63: 62: 56: 54: 53:Poizat (1983) 50: 46: 45:Shelah (1990) 42: 38: 34: 30: 19: 373:Model theory 344: 307: 303: 280:Model theory 279: 260:finite field 252:vector space 225: 218: 214: 213:A model has 207: 203: 202:such that θ( 199: 195: 191: 187: 183: 179: 175: 171: 165: 161: 157: 154: 146:); it is an 143: 139: 138:such that φ( 135: 131: 130:of elements 115:) that is a 112: 108: 100: 93: 86: 82: 78: 64: 48: 36: 29:model theory 26: 59:Definitions 33:mathematics 18:Imaginaries 267:References 121:transitive 85:stand for 341:(1990) , 256:dimension 117:symmetric 367:Category 276:(1993), 233:Examples 206:,  186:,  142:,  124:relation 111:,  71:of some 332:0727805 324:2273680 105:formula 353:  330:  322:  292:  160:/φ of 73:theory 47:, and 320:JSTOR 103:is a 69:model 67:is a 35:, an 351:ISBN 290:ISBN 174:has 119:and 81:and 312:doi 254:of 153:An 134:of 128:set 99:An 27:In 369:: 328:MR 326:, 318:, 308:48 306:, 288:, 284:, 250:A 210:). 107:φ( 55:. 314:: 221:. 219:a 208:b 204:x 200:x 196:a 192:b 188:y 184:x 180:a 172:M 168:. 166:a 162:M 158:a 144:a 140:a 136:M 132:a 113:y 109:x 96:. 94:n 87:n 83:y 79:x 75:. 65:M 20:)

Index

Imaginaries
model theory
mathematics
equivalence class
Shelah (1990)
Poizat (1983)
model
theory
natural number
formula
symmetric
transitive
relation
set
equivalence relation
ZFC set theory
Peano arithmetic
vector space
dimension
finite field
Hodges, Wilfrid
Model theory
Cambridge University Press
ISBN
978-0-521-30442-9
doi
10.2307/2273680
JSTOR
2273680
MR

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