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Category:Logic

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Logic (from the Greek "logos", which has a variety of meanings including word, thought, idea, argument, account, reason or principle) is the study of reasoning, or the study of the principles and criteria of valid inference and demonstration. It attempts to distinguish good reasoning from bad
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This category may require frequent maintenance to avoid becoming too large. It should directly contain very few, if any, pages and should mainly contain subcategories.
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This category has the following 11 subcategories, out of 11 total.
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The following 154 pages are in this category, out of 154 total.
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Original proof of Gödel's completeness theorem
189:should be moved to subcategories where applicable. 1424: 556:Birkhoff's theorem (equational logic) 1228:Simplification of disjunctive antecedents 512:Knowledge:Contents/Mathematics and logic 468:This list may not reflect recent changes 737:Extensional and intensional definitions 1425: 598:Colorless green ideas sleep furiously 215: 174: 171:WP:WikiProject Philosophy/Resources 13: 1387:What the Tortoise Said to Achilles 472: 222: 214: 112: 15: 14: 1444: 1238:Social software (research field) 1127:Principle of nonvacuous contrast 179: 155: 141: 1048:Normal form (natural deduction) 685:Discourse representation theory 104:Theories of deduction 1223:Simple non-inferential passage 892:Lewis's triviality result 722:Equality-generating dependency 1: 969:Loosely associated statements 534:Ariadne's thread (logic) 1132:Propositional representation 461: 7: 1319:Tuple-generating dependency 99:Concepts in logic 10: 1449: 1154:Quantization (linguistics) 588:Circumscription (taxonomy) 197:The main article for this 196: 168: 47:History of logic 1309:Transferable belief model 1117:Pragmatic theory of truth 1011:Multiple-conclusion logic 882:Language, Proof and Logic 463:Pages in category "Logic" 85:Computability theory 37:Philosophical logic 1137:Psychology of reasoning 1033:Neutrality (philosophy) 981:Markov's principle 675:Difference (philosophy) 573:Canon (basic principle) 500:Index of logic articles 187:Pages in this category 124:Index of logic articles 42:Mathematical logic 1433:Branches of philosophy 1358:Valuation-based system 1294:Theoretical definition 1122:Principle of bivalence 1082:Penrose–Lucas argument 1060:Ontological commitment 1043:Nonfirstorderizability 917:Logic of argumentation 717:Enumerative definition 680:Digital timing diagram 655:Diagrammatic reasoning 56:Critical thinking 1397:Witness (mathematics) 1262:Syncategorematic term 1087:Persuasive definition 907:Logic and rationality 860:Infinite-valued logic 764:Finite model property 603:Composition of causes 578:Canonical normal form 94:Logic literature 1414:Zhegalkin polynomial 1070:Ostensive definition 922:Logic of information 870:Inverse consequences 690:Don't-care term 618:Condensed detachment 613:Conceptions of logic 608:Concatenation theory 1375:Warnier/Orr diagram 1176:Regular modal logic 1102:Post's lattice 1092:Philosophy of logic 1038:Non-monotonic logic 944:Logical determinism 850:Inductive reasoning 833:Hurford disjunction 769:Finite-valued logic 742:Extensional context 707:Embedded dependency 645:Deductive reasoning 403:Philosophy of logic 290:Logic organizations 232:Logic-related lists 1249:Superassertibility 1203:Self-refuting idea 1171:Reactive synthesis 1149:Quantifier (logic) 1016:Mutual exclusivity 1006:Morton's fork 991:Mathematical logic 897:Lexical definition 163:Mathematics portal 1348:Vagrant predicate 1233:Situational logic 1208:Semantic argument 1193:Schrödinger logic 1107:Pragmatic mapping 964:Logical pluralism 959:Logical intuition 932:Logic translation 927:Logic programming 845:Inclusion (logic) 796:The Game of Logic 732:Existential graph 695:Dynamic semantics 623:Conditional proof 480:Glossary of logic 355:Concepts in logic 195: 194: 149:Philosophy portal 137: 136: 111: 110: 66:Model theory 61:Proof theory 31: 30: 1440: 1383: 1304:Train of thought 1279:Tacit assumption 1258: 1251: 1166:Rational fideism 940: 823:History of logic 665:Dialogical logic 660:Dialectica space 583:Catch-22 (logic) 539:Autological word 490:Outline of logic 452: 432: 425: 408: 401: 384: 379:History of logic 377: 360: 353: 336: 329: 319: 312: 295: 288: 278: 273:Logic literature 271: 261: 254: 237: 183: 182: 175: 165: 160: 159: 151: 146: 145: 144: 131:Outline of logic 113: 20: 19: 16: 1448: 1447: 1443: 1442: 1441: 1439: 1438: 1437: 1423: 1422: 1421: 1420: 1419: 1418: 1406: 1402:World Logic Day 1392:Window operator 1381:Warrant (logic) 1379: 1367: 1340: 1331:Universal logic 1323: 1271: 1256:Superassertible 1254: 1247: 1213:Ship of Theseus 1185: 1158: 1141: 1112:Pragmatic maxim 1074: 1052: 1020: 996:Metamathematics 973: 954:Logical harmony 949:Logical extreme 936: 887:Law of identity 874: 837: 818:Herbrandization 810: 801:Geometric logic 788: 784:Formal ontology 751: 699: 637: 593:Classical logic 565: 561:Boolean network 551:Belief revision 543: 516: 504: 460: 459: 458: 457: 454: 453: 437: 434: 433: 422: 413: 410: 409: 398: 389: 386: 385: 374: 365: 362: 361: 350: 341: 338: 337: 326: 321: 320: 309: 300: 297: 296: 285: 280: 279: 268: 263: 262: 251: 242: 239: 238: 213: 208: 184: 180: 173: 161: 154: 147: 142: 140: 80:Set theory 27: 12: 11: 5: 1446: 1436: 1435: 1417: 1416: 1410: 1407: 1405: 1404: 1399: 1394: 1389: 1384: 1377: 1371: 1368: 1366: 1365: 1360: 1355: 1350: 1344: 1341: 1339: 1338: 1333: 1327: 1324: 1322: 1321: 1316: 1311: 1306: 1301: 1296: 1291: 1286: 1281: 1275: 1272: 1270: 1269: 1264: 1259: 1252: 1245: 1240: 1235: 1230: 1225: 1220: 1215: 1210: 1205: 1200: 1198:Self-reference 1195: 1189: 1186: 1184: 1183: 1178: 1173: 1168: 1162: 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813:H 791:G 754:F 702:E 640:D 568:C 546:B 519:A 507:* 440:Σ 416:R 392:P 368:H 344:C 303:+ 245:* 207:. 128:· 121:·

Index

Logic
Philosophical logic
Mathematical logic
History of logic
Critical thinking
Proof theory
Model theory
Logicians
Set theory
Computability theory
Logic literature
Concepts in logic
Theories of deduction
Logic
Index of logic articles
Outline of logic
Philosophy portal
icon
Mathematics portal
WP:WikiProject Philosophy/Resources
category
Logic
Logic-related lists

Logicians

Logic literature

Logic organizations

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