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1. Top results related to logic programming

   • Logic programming in python

     Top Answer

     Answered Apr 10, 2020 · 6 votes

     I tried to develop something that uses prolog's syntax, approach and backtracking in python to solve the issue. I wrote pytholog library. I am sharing the answers to get comments and if there are better ways to do it.

     In pytholog I initiate a knowledge base and I query it.

     import pytholog as plfriends_kb = pl.KnowledgeBase("friends")friends_kb([ "has_lot_work(daniel, 8)", "has_lot_work(david, 3)", "stress(X, P) :- has_lot_work(X, P2), P is P2 / 100", "to_smoke(X, Prob) :- stress(X, P1), friends(Y, X), influences(Y, X, P2), smokes(Y), Prob is P1 + P2", "to_have_asthma(X, 0.3) :- smokes(X)", "to_have_asthma(X, Prob) :- to_smoke(X, P2), Prob is P2 * 0.25", "friends(X, Y) :- friend(X, Y)", "friends(X, Y) :- friend(Y, X)", "influences(X, Y, 0.4) :- friends(X, Y)", "friend(peter, david)", "friend(peter, rebecca)", "friend(daniel, rebecca)", "smokes(peter)", "smokes(rebecca)"])print(friends_kb.query(pl.Expr("to_smoke(Who, P)")))# [{'Who': 'daniel', 'P': 0.48000000000000004}, {'Who': 'david', 'P': 0.43000000000000005}]print(friends_kb.query(pl.Expr("to_have_asthma(Who, P)")))# [{'Who': 'peter', 'P': '0.3'}, {'Who': 'rebecca', 'P': '0.3'}, {'Who': 'daniel', 'P': 0.12000000000000001}, {'Who': 'david', 'P': 0.10750000000000001}]

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   • logic programming - find synonyms of a given word

     Top Answer

     Answered Apr 09, 2021 · 1 votes

     In general, this just looks like you are interested in the transitive closure (of a graph)?

     For undirected graphs ("Being synonyms doesn’t depend on order"), this is related to Connected Components (and here we directly see some logic-relation as 2-SAT algorithms also exploit connected components).

     Maybe see also: Algowiki

     Basically:

     • preprocessing-time: calculate the transitive closure of your input
     • query-time -> synonym(a,b): check if edge (a,b) exists

     Or without preprocessing: just look for a path on-demand:

     • query-time -> synonym(a,b): check if there is a path between a, b BFS/DFS

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     2/5

   • Programming Logic/Psuedocode

     Top Answer

     Answered Jan 24, 2021 · 2 votes

     A simple method to generate some solutions is to pick a first row arbitrarily and then fill out each subsequent row by taking one minus the previous row. We can also do this with columns.

     It turns out that every valid matrix is generated by one of these two variants (note that the two perfect checkerboards are generated by both). The reason is that if the first row has adjacent zeros or adjacent ones, then the entries below it are forced, these force the rest of the row to be one minus the previous row, and in turn the rest of the rows are forced. Ditto columns. If neither the first row nor the first column has a duplicate, then we have one of the two checkerboards.

     Maximizing isn't too hard. For alternating rows, decide for each column whether the even rows or the odd rows are more valuable. For alternating columns, decide for each row whether the even columns or the odd columns are more valuable. Take the best of these two solutions.

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     3/5

   • Programming logic for income tax calculation

     Top Answer

     Answered Jan 21, 2012 · 2 votes

     function get_taxed_salary($salary){ if ($salary <= 150 ){ return $salary; }; if ($salary <= 650){ return ( 0.9 * $salary - 15.0 ); }; ...}

     later in your code you use that function like:

     $taxed_salary = get_taxed_salary($salary);-

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     4/5

   • Also try

     ladder logic programming	pentair screen logic programming
     logic programming languages	logic programming paradigm
     logic programming in artificial intelligence	flash logic programming
     inductive logic programming	logic programming in ai

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2. en.wikipedia.org › wiki › Logic_programmingLogic programming - Wikipedia

   en.wikipedia.org › wiki › Logic_programming

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   2 days ago · Logic programming. Logic programming is a programming, database and knowledge representation paradigm based on formal logic. A logic program is a set of sentences in logical form, representing knowledge about some problem domain. Computation is performed by applying logical reasoning to that knowledge, to solve problems in the domain.

3. www.geeksforgeeks.org › proposition-logicPropositional Logic - Definition & Truth Table - GeeksforGeeks

   www.geeksforgeeks.org › proposition-logic

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   May 1, 2024 · A proposition is the basic building block of logic. It is defined as a declarative sentence that is either True or False, but not both. The Truth Value of a proposition is True (denoted as T) if it is a true statement, and False (denoted as F) if it is a false statement. For Example, 1.

4. www.geeksforgeeks.org › introduction-ofIntroduction of Programming Paradigms - GeeksforGeeks

   www.geeksforgeeks.org › introduction-of

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   Apr 21, 2024 · 2. Declarative programming paradigm: It is divided as Logic, Functional, Database. In computer science the declarative programming is a style of building programs that expresses logic of computation without talking about its control flow. It often considers programs as theories of some logic.It may simplify writing parallel programs.

5. arshovon.com › blog › datalog-introductionIntroduction to Datalog as logic programming - Ahmedur Rahman ...

   arshovon.com › blog › datalog-introduction

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   Apr 25, 2024 · Logic programming is a subset of declarative programming. In logic programming, the programmer specifies a set of logical facts and rules about a domain and the logic programming system uses logical inference to derive the desired results. Prolog and Datalog are two popular logic programming languages. As the title suggests, this tutorial will ...

6. en.wikipedia.org › wiki › First-order_logicFirst-order logic - Wikipedia

   en.wikipedia.org › wiki › First-order_logic

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   1 day ago · First-order logic —also known as predicate logic, quantificational logic, and first-order predicate calculus —is a collection of formal systems used in mathematics, philosophy, linguistics, and computer science. First-order logic uses quantified variables over non-logical objects, and allows the use of sentences that contain variables, so ...

7. Videos

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     Lecture 8A: Logic Programming, Part 1

     Aug 22, 2019

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     25:13

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     Logic for Programmers: Propositional Logic

     Jul 20, 2018

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     5:19

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     12 Introduction to Logic programming language

     May 28, 2019

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8. en.wikipedia.org › wiki › Unification_(computer_science)Unification (computer science) - Wikipedia

   en.wikipedia.org › wiki › Unification_(computer_science)

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   6 days ago · Application: unification in logic programming. The concept of unification is one of the main ideas behind logic programming. Specifically, unification is a basic building block of resolution, a rule of inference for determining formula satisfiability. In Prolog, the equality symbol = implies first-order syntactic unification. It represents the ...

9. www.orientsoftware.com › blog › programming-logicBeing a Superior Newbie: Learn Programming Logic for Beginners

   www.orientsoftware.com › blog › programming-logic

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   Apr 15, 2024 · Programming logic is the foundational framework that dictates how a computer performs particular tasks and solves problems. It’s akin to a recipe that guides the computer through a series of instructions, each step building upon the last, to achieve a desired outcome. This logical sequence is crucial because, unlike humans, computers require ...

10. People also ask

    What is a logic program?

    • A logic program is a set of sentences in logical form, representing knowledge about some problem domain. Computation is performed by applying logical reasoning to that knowledge, to solve problems in the domain. Major logic programming language families include Prolog, Answer Set Programming (ASP) and Datalog.

    Logic programming - Wikipedia

    en.wikipedia.org/wiki/Logic_programming

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    What are the applications of logic programming?

    • However, many applications of logic programming, including Prolog applications, increasingly focus on the use of logic to represent purely declarative knowledge. These applications include both the representation of general commonsense knowledge and the representation of domain specific expertise .

    Logic programming - Wikipedia

    en.wikipedia.org/wiki/Logic_programming

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    What are the different types of logic programming languages?

    • Computation is performed by applying logical reasoning to that knowledge, to solve problems in the domain. Major logic programming language families include Prolog, Answer Set Programming (ASP) and Datalog. In all of these languages, rules are written in the form of clauses : A :- B 1, ..., B n.

    Logic programming - Wikipedia

    en.wikipedia.org/wiki/Logic_programming

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    What are the characteristics of logic programming?

    • All of these characteristics of rule-based systems - search, forward and backward reasoning, default reasoning, and goal-reduction - are also defining characteristics of logic programming. This suggests that Thagard's conclusion (page 56) that:

    Logic programming - Wikipedia

    en.wikipedia.org/wiki/Logic_programming

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