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Tautology
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11	Microsoft PowerPoint - Dissvortrag-Version_2007-11-08_online.ppt Add to Reading List Source URL: www.ruedi-arnold.com Language: English - Date: 2011-12-23 03:20:07 Logic Mathematical logic Abstraction Syntax Propositional calculus Non-classical logic Boolean algebra Matrix Well-formed formula Proposition Tautology First-order logic
12	A Generalization of St˚ almarck’s Method⋆ Aditya Thakur1 and Thomas Reps1,2⋆⋆ 1 University of Wisconsin; Madison, WI, USA Add to Reading List Source URL: research.cs.wisc.edu Language: English - Date: 2012-09-06 17:53:27 Logic Mathematics Mathematical logic Boolean algebra Propositional calculus Model theory Propositions Propositional formula Interpretation Tautology Distributive property Closure
13	Sage Reference Manual: Symbolic Logic Release 6.7 The Sage Development Team Add to Reading List Source URL: doc.sagemath.org Language: English - Date: 2015-06-24 05:21:38 Mathematics Boolean algebra Semantics Logical connectives Tautology Truth table Conjunctive normal form Negation Sage Logic Propositional calculus Mathematical logic
14	2000 Paper 5 Question 11 Logic and Proof Given a propositional formula, we wish to test whether it is a tautology and, if it is not, to compute an interpretation that makes it false. Two techniques for doing this are th Add to Reading List Source URL: www.cl.cam.ac.uk - Date: 2014-06-09 10:17:36
15	LexiClone Inc. and NIST TREC. Ilya Geller The UniSearch-4.6 program created by the company LexiClone Inc. for seeking out textual information is intended to search for Reality as well as Truth. Whil Add to Reading List Source URL: trec.nist.gov Language: English Logic Philosophy of life Reality Mathematical logic Logical truth Tautology Truth Existence Ludwig Wittgenstein Philosophy Metaphysics Ontology
16	Three-Valued Logics Notation: p, q, r atomic formulas; A, B, C arbitrary formulas Values = {T, F, N} Valuation = assignment of a value from Values to each atomic formula Can be extended to an assignment of values to each Add to Reading List Source URL: johnmacfarlane.net Language: English Propositional calculus Semantics Boolean algebra Logical connective Truth table Valuation If and only if Tautology Natural deduction Abstract algebra Logic Mathematics
17	Propositional Logic Review John MacFarlane January 24, 2011 The task of describing a logical system comes in three parts: Grammar Describing what counts as a formula. Semantics Defining truth in a model (and, derivativel Add to Reading List Source URL: johnmacfarlane.net Language: English - Date: 2011-01-24 19:35:06 Logical truth Binary operations Boolean algebra Tautology Logical connective If and only if Entailment Well-formed formula Truth table Logic Propositional calculus Philosophical logic
18	CS109B Notes for LectureHow to Prove Things 1. Truth tables \| check it out; it takes O(2n ) time on an expression with n variables, but if n is small this is ne. Add to Reading List Source URL: infolab.stanford.edu Language: English - Date: 2008-09-19 00:59:13 Boolean algebra Logical truth Rules of inference Modus ponens Substitution Tautology First-order logic Contradiction Resolution Logic Mathematical logic Propositional calculus
19	CS109B Notes for LectureWhy Interpretations? Add to Reading List Source URL: infolab.stanford.edu Language: English - Date: 2008-09-19 00:59:21 Propositional calculus Predicate logic Model theory Semantics Predicate Interpretation First-order logic Propositional variable Tautology Logic Mathematical logic Mathematics
20	CS109B Notes for LectureWhy Tautologies Again? Add to Reading List Source URL: infolab.stanford.edu Language: English - Date: 2008-09-19 00:59:23 Propositional calculus Model theory Logical truth Semantics Predicate logic Tautology First-order logic Substitution Function Logic Mathematical logic Mathematics