Subject: Computational Logic
Scientific Area:
Mathematics
Workload:
80 Hours
Number of ECTS:
7,5 ECTS
Language:
Portuguese
Overall objectives:
                                         1 - To introduce the basic theoretical concepts concerning logical reasoning and logical systems. To present several deductive systems both for propositional logic and to predicate logic. To expose the interrelation between the semantics and the deductive systems associated to those two logical systems.
 2 - To highlight the interrelation between formal logic and computation (namely by presenting a programming language (Prolog) which uses the concept of logical deduction as its computation engine).
                                    
Syllabus:
 1 - Propositional Logic (Propositional Calculus).
 1.1 - The notion of formal (logical) system: language, semantics and deductive system.
 1.2 - The language(s) of propositional calculus.
 1.3 - An application of the principle of structural induction in propositional logic.
 1.4 - Semantics of propositional calculus (truth tables, tautologies, the notion of logical consequence, normal forms; adequate sets of connectives).
 1.5 - An axiomatization for the propositional calculus (proofs and derivations, the deduction theorem, soundness, consistency and adequacy/completeness of the axiomatization).
 1.6 - Other deductive systems for propositional calculus.
 2 - First-Order Logic (Predicate Calculus).
 2.1 - First-Order Languages and their semantics (free term for a variable in a formula; instance of a tautology; interpretation, valuation and validity).
 2.2 - An axiomatization for the predicate calculus (its soundness and consistency; the deduction theorem; adequacy/completeness of the proposed axiomatization).
 2.3 - Another deductive system for predicate calculus.
 3 - Introduction to Prolog.
 3.1 - The logic programming paradigm.
 3.2 - Introduction to Programming in Prolog.
Literature/Sources:
                                         Hamilton, A.G. , 1988 , Logic for Mathematicians , Cambridge University Press
 E. Mendelson , 1997 , Introduction to Mathematical Logic , Chapman & Hall
 J. H. Gallier , 1986 , Logic For Computer Science: Foundations of Automatic Theorem Proving , John Wiley & Sons
 Reis, M.D.L. , 2014 , Folhas de apoio às aulas de lógica computacional , Universidade da Madeira
 Makinson, D. , 2012 , Sets, Logic and Maths for Computing , Springer
 Martins, J. P. , 2014 , Lógica e Raciocínio , College Publications
 U. Nilsson and J. Maluszynski , 1995 , Logic, Programming and Prolog , John Wiley & Sons Ltd.
 Blackburn, P. & Bos, J. & Striegnitz, K. , 2006 , Learn Prolog Now! , College Publications
 Carmo, J. & Gouveia, P. & Dionísio, F. M. , 2013 , Elementos de Matemática Discreta , College Publications
 Fitting, M. , 1996 , First-Order Logic and Automated Theorem Proving , Springer
 Gabbay, D.M. , 2007 , Logic for Artificial Intelligence and Information Technology , King's College Publications
 Oliveira, A. J. F. , 1980 , Lógica Elementar , AEFCL
 Oliveira, A. J. F. , 1981 , Teoria dos Conjuntos: Indutiva e Axiomática (ZFC) , Livraria Escolar Editora
 Oliveira, A.J.F. , 2010 , Lógica & Aritmética: Uma introdução à lógica, matemática e computacional , Gradiva
 Sterling, L. & Shapiro, E. , 1986 , The Art of PROLOG: Advanced Programming Techniques , MIT Press
                                    
Assesssment methods and criteria:
                                        Classification Type: Quantitativa (0-20)
Evaluation Methodology: 
Teaching Methodologies: Theoretical expository lectures; Practical problem solving classes; Classes devoted to practical laboratory work involving the use of Prolog.   Assessment Methodologies: The assessment is made by means of one of the two following sets of evaluation elements (to be determined by the professor responsible for the course at the beginning of the semester): (i) Two compulsory written tests and an assignment, with the following weight distribution in the final grade: First test: 40%; Second test: 45%; Assignment: 15%. (ii) Two compulsory written tests and a mini-test, with the following weight distribution in the final grade: First test: 40%; Second test: 40%; Assignment: 20%.