Knowledge (XXG)

Quantifier shift

Source 📝

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However, if the major premise ("every person has a woman that is their mother") is assumed to be true, then it is valid to conclude that there is
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It is fallacious to conclude that there is a single natural number that is the successor of every natural number.
210:
1. Every person has a woman that is their mother. Therefore, there is a woman that is the mother of every person.
1646: 1203: 1099: 344:{\displaystyle \forall x\,\exists y\,(Px\to (Wy\land M(yx)))\vdash \exists y\,\forall x\,(Px\to (Wy\land M(yx)))} 1641: 1481: 949: 785: 741: 1661: 1476: 992: 688: 1583: 1573: 1523: 1497: 1273: 1147: 1114: 1015: 997: 897: 746: 728: 1621: 1609: 1589: 1578: 1493: 1306: 1282: 1104: 1060: 912: 838: 751: 35:
process. The change in the logical nature of the statement may not be obvious when it is stated in a
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2. Everybody has something to believe in. Therefore, there is something that everybody believes in.
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For every A, there is a B, such that C. Therefore, there is a B, such that for every A, C.
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A. R. Lacey, Dictionary of Philosophy (Third Revised Edition) (
517:, the smallest of all natural numbers that are greater than 568: 543: 523: 491: 471: 385: 219: 139: 67: 31:
of a statement are erroneously transposed during the
1550: 1538: 1397: 1388: 1297: 1272: 1247: 1171: 1123: 1059: 1034: 1006: 971: 921: 875: 866: 804: 770: 726: 717: 667:, Dictionary of Philosophy: Revised Second Edition 620: 551: 529: 509: 477: 455:It is valid to conclude that each person believes 437: 343: 191: 119: 670:Harry J. Gensler, Historical Dictionary of Logic 814:Affirmative conclusion from a negative premise 819:Negative conclusion from affirmative premises 689: 8: 559:that is a successor to all natural numbers. 448:It is fallacious to conclude that there is 354:It is fallacious to conclude that there is 1547: 1394: 1269: 872: 723: 696: 682: 674: 608: 601: 582: 575: 567: 544: 542: 522: 490: 470: 425: 418: 399: 392: 384: 295: 288: 233: 226: 218: 179: 172: 153: 146: 138: 107: 100: 81: 74: 66: 647:(Second Edition), 1999, pp. 272–3. 537:. Therefore, there is a natural number 645:The Cambridge Dictionary of Philosophy 7: 602: 595: 576: 569: 419: 412: 393: 386: 289: 282: 227: 220: 173: 166: 147: 140: 101: 94: 75: 68: 14: 1695: 1694: 130:However, an inverse switching: 661:, Harry J. Gensler, p. 220 1192:Correlation implies causation 452:to which everyone subscribes. 338: 335: 332: 323: 308: 305: 296: 276: 273: 270: 261: 246: 243: 234: 1: 1737: 1721:Quantificational fallacies 1616:I'm entitled to my opinion 1690: 1599: 1472: 1642:Motte-and-bailey fallacy 742:Affirming the consequent 1662:Two wrongs make a right 993:Denying the correlative 450:some particular concept 1647:Psychologist's fallacy 1584:Argument to moderation 1574:Argument from anecdote 1524:Chronological snobbery 1148:Quoting out of context 1115:Overwhelming exception 998:Suppressed correlative 898:Quoting out of context 773:quantificational logic 747:Denying the antecedent 622: 553: 531: 511: 479: 439: 345: 193: 121: 1610:The Four Great Errors 1590:Argumentum ad populum 1579:Argument from silence 1283:Argumentum ad baculum 1061:Faulty generalization 752:Argument from fallacy 623: 554: 532: 512: 510:{\displaystyle m=n+1} 480: 440: 358:who is the mother of 346: 194: 122: 1628:Invincible ignorance 1434:Reductio ad Stalinum 1420:Reductio ad Hitlerum 1376:Wisdom of repugnance 1143:Moving the goalposts 1008:Illicit transference 933:Begging the question 854:Undistributed middle 762:Mathematical fallacy 737:Affirming a disjunct 566: 541: 521: 489: 469: 383: 217: 202:is logically valid. 137: 65: 53:fallacious deduction 1361:Parade of horribles 1337:In-group favoritism 1163:Syntactic ambiguity 806:Syllogistic fallacy 729:propositional logic 552:{\displaystyle {m}} 1447:Poisoning the well 1264:Proof by assertion 1239:Texas sharpshooter 1173:Questionable cause 1110:Slothful induction 1069:Anecdotal evidence 929:Circular reasoning 824:Exclusive premises 786:Illicit conversion 652:Barnes & Noble 643:(General Editor), 618: 549: 527: 507: 475: 435: 371:any given person's 341: 189: 117: 1708: 1707: 1686: 1685: 1682: 1681: 1622:Ignoratio elenchi 1534: 1533: 1384: 1383: 1346:Not invented here 1051:Converse accident 973:Correlative-based 950:Compound question 893:False attribution 888:False equivalence 862: 861: 530:{\displaystyle n} 478:{\displaystyle n} 1728: 1698: 1697: 1669:Special pleading 1548: 1409:Appeal to motive 1395: 1371:Stirring symbols 1351:Island mentality 1289:Wishful thinking 1270: 986:Perfect solution 963:No true Scotsman 958:Complex question 943:Leading question 922:Question-begging 908:No true Scotsman 873: 796:Quantifier shift 791:Proof by example 724: 698: 691: 684: 675: 657:Introduction to 627: 625: 624: 619: 558: 556: 555: 550: 548: 536: 534: 533: 528: 516: 514: 513: 508: 485:has a successor 484: 482: 481: 476: 444: 442: 441: 436: 350: 348: 347: 342: 198: 196: 195: 190: 126: 124: 123: 118: 37:natural language 21:quantifier shift 1736: 1735: 1731: 1730: 1729: 1727: 1726: 1725: 1711: 1710: 1709: 1704: 1678: 1652:Rationalization 1595: 1542: 1530: 1468: 1390:Genetic fallacy 1380: 1293: 1268: 1243: 1167: 1158:Sorites paradox 1138:False precision 1119: 1100:Double counting 1055: 1030: 1002: 967: 954:Loaded question 938:Loaded language 917: 858: 800: 766: 713: 702: 637: 564: 563: 539: 538: 519: 518: 487: 486: 467: 466: 457:a given concept 381: 380: 215: 214: 208: 135: 134: 63: 62: 49: 25:logical fallacy 17: 16:Logical fallacy 12: 11: 5: 1734: 1732: 1724: 1723: 1713: 1712: 1706: 1705: 1703: 1702: 1691: 1688: 1687: 1684: 1683: 1680: 1679: 1677: 1676: 1671: 1666: 1665: 1664: 1654: 1649: 1644: 1639: 1630: 1625: 1618: 1613: 1606: 1600: 1597: 1596: 1594: 1593: 1586: 1581: 1576: 1571: 1570: 1569: 1556: 1554: 1545: 1536: 1535: 1532: 1531: 1529: 1528: 1527: 1526: 1512: 1507: 1502: 1501: 1500: 1491: 1484: 1482:Accomplishment 1473: 1470: 1469: 1467: 1466: 1461: 1454: 1449: 1444: 1439: 1438: 1437: 1430: 1429: 1428: 1411: 1405: 1403: 1392: 1386: 1385: 1382: 1381: 1379: 1378: 1373: 1368: 1363: 1358: 1353: 1348: 1339: 1334: 1329: 1324: 1319: 1314: 1309: 1303: 1301: 1295: 1294: 1292: 1291: 1286: 1278: 1276: 1267: 1266: 1257: 1251: 1249: 1245: 1244: 1242: 1241: 1236: 1234:Slippery slope 1231: 1226: 1221: 1220: 1219: 1209: 1208: 1207: 1200: 1190: 1189: 1188: 1177: 1175: 1169: 1168: 1166: 1165: 1160: 1155: 1153:Slippery slope 1150: 1145: 1140: 1135: 1129: 1127: 1121: 1120: 1118: 1117: 1112: 1107: 1102: 1097: 1088: 1087: 1086: 1081: 1079:Cherry picking 1071: 1065: 1063: 1057: 1056: 1054: 1053: 1048: 1042: 1040: 1032: 1031: 1029: 1028: 1023: 1018: 1012: 1010: 1004: 1003: 1001: 1000: 995: 990: 989: 988: 977: 975: 969: 968: 966: 965: 960: 947: 946: 945: 935: 925: 923: 919: 918: 916: 915: 910: 905: 900: 895: 890: 885: 879: 877: 870: 864: 863: 860: 859: 857: 856: 851: 846: 841: 836: 831: 826: 821: 816: 810: 808: 802: 801: 799: 798: 793: 788: 783: 777: 775: 768: 767: 765: 764: 759: 754: 749: 744: 739: 733: 731: 721: 715: 714: 703: 701: 700: 693: 686: 678: 672: 671: 668: 665:Antony G. Flew 662: 655: 648: 636: 633: 629: 628: 617: 614: 611: 607: 604: 600: 597: 594: 591: 588: 585: 581: 578: 574: 571: 547: 526: 506: 503: 500: 497: 494: 474: 464:natural number 446: 445: 434: 431: 428: 424: 421: 417: 414: 411: 408: 405: 402: 398: 395: 391: 388: 352: 351: 340: 337: 334: 331: 328: 325: 322: 319: 316: 313: 310: 307: 304: 301: 298: 294: 291: 287: 284: 281: 278: 275: 272: 269: 266: 263: 260: 257: 254: 251: 248: 245: 242: 239: 236: 232: 229: 225: 222: 207: 204: 200: 199: 188: 185: 182: 178: 175: 171: 168: 165: 162: 159: 156: 152: 149: 145: 142: 128: 127: 116: 113: 110: 106: 103: 99: 96: 93: 90: 87: 84: 80: 77: 73: 70: 48: 45: 15: 13: 10: 9: 6: 4: 3: 2: 1733: 1722: 1719: 1718: 1716: 1701: 1693: 1692: 1689: 1675: 1672: 1670: 1667: 1663: 1660: 1659: 1658: 1655: 1653: 1650: 1648: 1645: 1643: 1640: 1638: 1634: 1631: 1629: 1626: 1624: 1623: 1619: 1617: 1614: 1612: 1611: 1607: 1605: 1602: 1601: 1598: 1592: 1591: 1587: 1585: 1582: 1580: 1577: 1575: 1572: 1568: 1565: 1564: 1563: 1562: 1558: 1557: 1555: 1553: 1549: 1546: 1544: 1537: 1525: 1522: 1521: 1520: 1516: 1513: 1511: 1508: 1506: 1503: 1499: 1495: 1492: 1490: 1489: 1485: 1483: 1480: 1479: 1478: 1475: 1474: 1471: 1465: 1462: 1460: 1459: 1455: 1453: 1450: 1448: 1445: 1443: 1440: 1436: 1435: 1431: 1427: 1424: 1423: 1422: 1421: 1417: 1416: 1415: 1412: 1410: 1407: 1406: 1404: 1402: 1401: 1396: 1393: 1391: 1387: 1377: 1374: 1372: 1369: 1367: 1364: 1362: 1359: 1357: 1354: 1352: 1349: 1347: 1343: 1342:Invented here 1340: 1338: 1335: 1333: 1330: 1328: 1325: 1323: 1320: 1318: 1315: 1313: 1310: 1308: 1305: 1304: 1302: 1300: 1296: 1290: 1287: 1285: 1284: 1280: 1279: 1277: 1275: 1271: 1265: 1261: 1258: 1256: 1253: 1252: 1250: 1246: 1240: 1237: 1235: 1232: 1230: 1227: 1225: 1222: 1218: 1215: 1214: 1213: 1210: 1206: 1205: 1201: 1199: 1198: 1194: 1193: 1191: 1187: 1184: 1183: 1182: 1179: 1178: 1176: 1174: 1170: 1164: 1161: 1159: 1156: 1154: 1151: 1149: 1146: 1144: 1141: 1139: 1136: 1134: 1131: 1130: 1128: 1126: 1122: 1116: 1113: 1111: 1108: 1106: 1105:False analogy 1103: 1101: 1098: 1096: 1092: 1089: 1085: 1082: 1080: 1077: 1076: 1075: 1074:Sampling bias 1072: 1070: 1067: 1066: 1064: 1062: 1058: 1052: 1049: 1047: 1044: 1043: 1041: 1039: 1038: 1037:Secundum quid 1033: 1027: 1024: 1022: 1019: 1017: 1014: 1013: 1011: 1009: 1005: 999: 996: 994: 991: 987: 984: 983: 982: 981:False dilemma 979: 978: 976: 974: 970: 964: 961: 959: 955: 951: 948: 944: 941: 940: 939: 936: 934: 930: 927: 926: 924: 920: 914: 911: 909: 906: 904: 901: 899: 896: 894: 891: 889: 886: 884: 881: 880: 878: 874: 871: 869: 865: 855: 852: 850: 849:Illicit minor 847: 845: 844:Illicit major 842: 840: 837: 835: 832: 830: 827: 825: 822: 820: 817: 815: 812: 811: 809: 807: 803: 797: 794: 792: 789: 787: 784: 782: 779: 778: 776: 774: 769: 763: 760: 758: 755: 753: 750: 748: 745: 743: 740: 738: 735: 734: 732: 730: 725: 722: 720: 716: 711: 707: 699: 694: 692: 687: 685: 680: 679: 676: 669: 666: 663: 660: 656: 653: 649: 646: 642: 639: 638: 634: 632: 615: 612: 609: 605: 598: 592: 589: 586: 583: 579: 572: 562: 561: 560: 545: 524: 504: 501: 498: 495: 492: 472: 465: 460: 458: 453: 451: 432: 429: 426: 422: 415: 409: 406: 403: 400: 396: 389: 379: 378: 377: 374: 372: 369:woman who is 368: 363: 361: 357: 329: 326: 320: 317: 314: 311: 302: 299: 292: 285: 279: 267: 264: 258: 255: 252: 249: 240: 237: 230: 223: 213: 212: 211: 205: 203: 186: 183: 180: 176: 169: 163: 160: 157: 154: 150: 143: 133: 132: 131: 114: 111: 108: 104: 97: 91: 88: 85: 82: 78: 71: 61: 60: 59: 58: 54: 46: 44: 42: 38: 34: 30: 27:in which the 26: 22: 1637:Naturalistic 1620: 1608: 1588: 1559: 1543:of relevance 1486: 1464:Whataboutism 1456: 1432: 1426:Godwin's law 1418: 1398: 1281: 1274:Consequences 1255:Law/Legality 1229:Single cause 1202: 1195: 1035: 903:Loki's Wager 883:Equivocation 876:Equivocation 795: 630: 461: 456: 454: 449: 447: 375: 370: 366: 364: 359: 355: 353: 209: 201: 129: 56: 50: 20: 18: 1657:Red herring 1414:Association 1095:Conjunction 1016:Composition 913:Reification 829:Existential 781:Existential 641:Robert Audi 29:quantifiers 1633:Moralistic 1567:Sealioning 1561:Ad nauseam 1488:Ipse dixit 1400:Ad hominem 1224:Regression 1026:Ecological 839:Four terms 757:Masked man 635:References 360:all people 47:Definition 1674:Straw man 1552:Arguments 1541:fallacies 1515:Tradition 1505:Etymology 1477:Authority 1458:Tu quoque 1442:Bulverism 1212:Gambler's 1181:Animistic 1125:Ambiguity 1091:Base rate 834:Necessity 706:fallacies 603:∀ 596:∃ 593:⊢ 577:∃ 570:∀ 462:3. Every 420:∀ 413:∃ 410:⊢ 394:∃ 387:∀ 356:one woman 318:∧ 306:→ 290:∀ 283:∃ 280:⊢ 256:∧ 244:→ 228:∃ 221:∀ 174:∃ 167:∀ 164:⊢ 148:∀ 141:∃ 102:∀ 95:∃ 92:⊢ 76:∃ 69:∀ 55:is that: 33:rewriting 1715:Category 1700:Category 1332:Ridicule 1317:Flattery 1307:Children 1204:Post hoc 1084:McNamara 1046:Accident 1021:Division 868:Informal 654:, 1996). 373:mother. 206:Examples 1519:Novelty 1494:Poverty 1356:Loyalty 1322:Novelty 1299:Emotion 1248:Appeals 1217:Inverse 1197:Cum hoc 1186:Furtive 704:Common 41:English 1604:Cliché 1539:Other 1510:Nature 1498:Wealth 1133:Accent 719:Formal 1366:Spite 1260:Stone 659:Logic 39:like 23:is a 1452:Tone 1327:Pity 1312:Fear 710:list 367:some 51:The 771:In 727:In 1717:: 1635:/ 1517:/ 1496:/ 1344:/ 1262:/ 1093:/ 956:/ 952:/ 931:/ 362:. 43:. 19:A 712:) 708:( 697:e 690:t 683:v 616:m 613:n 610:S 606:n 599:m 590:m 587:n 584:S 580:m 573:n 546:m 525:n 505:1 502:+ 499:n 496:= 493:m 473:n 433:y 430:x 427:B 423:x 416:y 407:y 404:x 401:B 397:y 390:x 339:) 336:) 333:) 330:x 327:y 324:( 321:M 315:y 312:W 309:( 303:x 300:P 297:( 293:x 286:y 277:) 274:) 271:) 268:x 265:y 262:( 259:M 253:y 250:W 247:( 241:x 238:P 235:( 231:y 224:x 187:y 184:x 181:R 177:y 170:x 161:y 158:x 155:R 151:x 144:y 115:y 112:x 109:R 105:x 98:y 89:y 86:x 83:R 79:y 72:x

Index

logical fallacy
quantifiers
rewriting
natural language
English
fallacious deduction
natural number
Robert Audi
The Cambridge Dictionary of Philosophy
Barnes & Noble
Logic
Antony G. Flew
v
t
e
fallacies
list
Formal
propositional logic
Affirming a disjunct
Affirming the consequent
Denying the antecedent
Argument from fallacy
Masked man
Mathematical fallacy
quantificational logic
Existential
Illicit conversion
Proof by example
Quantifier shift

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