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Contraposition
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1	Errors in Logic for Philosophy: 1. p. 60, step 5 of the proof for “contraposition 2” should cite step 4, not stepp. 61, two-thirds down the page, line 4 of the proof of the second form of negated-conditional s Add to Reading List Source URL: tedsider.org Language: English - Date: 2015-05-19 12:06:51
2	CS109A Notes for LectureThe Essence of Proof Mathematical proof is essentially persuasive prose. Like an essay, it is eective if it convinces the listener. Also like an essay, we can learn certain rhetorica Add to Reading List Source URL: infolab.stanford.edu Language: English - Date: 2008-09-19 00:57:46 Propositional calculus Rules of inference Boolean algebra Modus ponens Truth table Contraposition Proof by contradiction Vacuous truth First-order logic Logic Mathematics Mathematical logic
3	3. Extrapolation and its LimitsWhy should the unobserved part of reality resemble the observed part? Unobserved emeralds could just as easily be blue, as green. This is a puzzle about type 1 or “inductive” Add to Reading List Source URL: www.philosophy.ox.ac.uk Language: English - Date: 2012-05-17 04:38:09 Boolean algebra Binary operations Mathematical logic Truth table Contraposition Modal logic Negation Material conditional Truth Logic Propositional calculus Philosophical logic
4	How Implication Is Understood Author(s): P. N. Johnson-Laird and Joanna Tagart Source: The American Journal of Psychology, Vol. 82, No. 3 (Sep., 1969), pp[removed]Published by: University of Illinois Press Stable URL: h Add to Reading List Source URL: mentalmodels.princeton.edu Language: English - Date: 2012-06-14 17:20:20 Logical connectives Conditionals Philosophical logic Material conditional Paradoxes of material implication Exclusive or If and only if Entailment Contraposition Logic Propositional calculus Binary operations
5	Unit Test Math 202A: Geometry \| Unit 02: Methods of Proof and Logic \| Lesson 13: Unit Test Unit Test, Offline Part Geometry, Semester 1, Unit 2, Offline P Add to Reading List Source URL: assets.openstudy.com Language: English - Date: 2012-11-13 15:52:25 Mathematical logic Problem solving Reasoning Mathematical proof Deductive reasoning Inductive reasoning Contraposition Theorem Geometry Logic Mathematics Knowledge
6	Math 126: Prelude to Chapter 3 Our next topic is sequences and series. Many students find this material to be the most difficult and challenging aspect of the entire calculus sequence (bad pun). This comment is not inte Add to Reading List Source URL: people.whitman.edu Language: English - Date: 2013-03-20 12:31:29 Mathematical proofs Rules of inference Propositional calculus Mathematical induction Fibonacci number Contraposition Conditional statement Converse Proof by contrapositive Mathematics Logic Mathematical logic
7	1 Published in Philosophical Topics[removed]): pp[removed]Truth, Falsity and Borderline Cases* Add to Reading List Source URL: www.philosophy.ox.ac.uk Language: English - Date: 2008-02-04 11:49:50 Veracity Propositional calculus Truth Vacuous truth Principle of bivalence Modal logic If and only if Contraposition Many-valued logic Logic Philosophical logic Mathematical logic
8	Created by Tynan Lazarus December 6, [removed]Logic Add to Reading List Source URL: hawaii.hawaii.edu Language: English - Date: 2012-12-07 16:07:54 Mathematical logic Rules of inference Boolean algebra Truth table Modus ponens Modus tollens Negation If and only if Contraposition Logic Mathematics Propositional calculus
9	CHAPTER 3 Proof Techniques 3.1 Add to Reading List Source URL: myslu.stlawu.edu Language: English - Date: 2010-09-28 14:17:35 Mathematical logic Rules of inference Irrational number Proof by contrapositive Proof by contradiction Contraposition Prime number Direct proof If and only if Mathematics Mathematical proofs Logic
10	CHAPTER 8 Answers and Hints These pages contain answers to every exercise appearing in the book. Before Add to Reading List Source URL: myslu.stlawu.edu Language: English - Date: 2010-09-28 14:21:03 Mathematical proofs Rules of inference Quantification Vacuous truth Contraposition Proof by contrapositive Function Proof by contradiction Universal quantification Mathematics Logic Mathematical logic

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