PPT-Proofs and Problems without Words

But pictures are not proofs in themselves but may offer inspiration and direction Mathematical proofs require rigor but mathematical ideas benefit from insight Speaker Karl Ting . J Hildebrand Evenodd proofs Practice problems Solutions The problems below illustrate the various proof techniques direct proof proof by contraposition proof by cases and proof by contradiction see the separate handout on proof techniques J Hildebrand Worksheet Evenodd Proofs About this worksheet In this worksheet you will practice constructing and writing up proofs of statements involving the parity even or odd of integers and related properties using only minimal assumptionsessenti We present a metatheorem concerning monotonicity of posi tions in a formula that should have a more prominent place in the teaching of such proofs and give supporting examples Introduction In making a calculational step like eakening we are implici Logic and Proof. Fall . 2011. Sukumar Ghosh. Predicate Logic. Propositional logic has limitations. Consider this:. Is . x. . > 3. a proposition? No, it is a . predicate. . Call it . P(x. ). . Learner Objective: I will calculate midpoints of segments and complete proofs 
 requiring that more than one pair of triangles be shown congruent.. Advanced Geometry. Learner Objective: I will calculate midpoints of segments and complete proofs 
 requiring that more than one pair of triangles be shown congruent.. Dominique Unruh. University of Tartu. Tartu, April 12, 2012. Why quantum ZK?. Zero-knowledge:. Central tool in crypto. Exhibits many issues “in the small case”. Post-quantum crypto:. Classical protocols. Section 1.7. Section Summary. Mathematical Proofs. Forms of Theorems. Direct Proofs. Indirect Proofs. Proof of the . Contrapositive. Proof by Contradiction. Proofs of Mathematical Statements. A . proof. Chapter 1, Part III: Proofs. With Question/Answer Animations. Summary. Valid Arguments and Rules of Inference. Proof Methods. Proof Strategies. Rules of Inference. Section 1.6. Section Summary. Valid Arguments. Constant-Round Public-Coin. Zero-Knowledge Proofs. Yi Deng. IIE,Chinese. Academy of Sciences (Beijing). Joint work with. Juan . Garay. , San Ling, . Huaxiong. Wang and . Moti. Yung. 1. On the Implausibility of Constant-Round Public-Coin ZK Proofs. DPLL(T)-Based SMT Solvers. Guy . Katz. , Clark Barrett, . Cesare . Tinelli. , Andrew Reynolds, Liana . Hadarean. Stanford . University. The University. of Iowa. Synopsys. Producing Checkable Artifacts. Logic and Proof. Fall 2014. Sukumar Ghosh. Predicate Logic. Propositional logic has limitations. Consider this:. Is . x. . > 3. a proposition? No, it is a . predicate. . Call it . P(x. ). . P(4) . Hrubeš . &. . Iddo Tzameret. Proofs of Polynomial Identities . 1. IAS, Princeton. ASCR, Prague. The Problem. How . to solve it by hand . ?. Use the . polynomial-ring axioms . !. associativity. , . . Iddo Tzameret. Royal Holloway, University of London . Joint work with Fu Li (Tsinghua) and Zhengyu Wang (Harvard). . Sketch. 2. Sketch. : a major open problem in . proof complexity . stems from seemingly weak results. 1.1 Propositional Logic. 1.2 Propositional Equivalences. 1.3 Predicates and Quantifiers. 1.4 Nested Quantifiers. 1.5 Rules of Inference. 1.6 Introduction to Proofs. 1.7 Proof Methods and Strategy. To prove an argument is valid or the conclusion follows .