Definitions for horn clause
horn clause

WiktionaryRate this definition:0.0 / 0 votes

1. Horn clausenoun

   A clause (disjunction of literals) with at most one positive literal.

2. Etymology: After the logician.

WikipediaRate this definition:0.0 / 0 votes

1. Horn clause

   In mathematical logic and logic programming, a Horn clause is a logical formula of a particular rule-like form which gives it useful properties for use in logic programming, formal specification, and model theory. Horn clauses are named for the logician Alfred Horn, who first pointed out their significance in 1951.

WikidataRate this definition:0.0 / 0 votes

1. Horn clause

   In mathematical logic, a Horn clause is a clause with at most one positive literal. Horn clauses are named for the logician Alfred Horn, who first pointed out the significance of such clauses in 1951, in the article "On sentences which are true of direct unions of algebras", Journal of Symbolic Logic, 16, 14–21. A Horn clause with exactly one positive literal is a definite clause; a definite clause with no negative literals is sometimes called a “fact”; and a Horn clause without a positive literal is sometimes called a goal clause. These three kinds of Horn clauses are illustrated in the following propositional example: In the non-propositional case, all variables in a clause are implicitly universally quantified with scope the entire clause. Thus, for example: stands for: which is logically equivalent to: Horn clauses play a basic role in constructive logic and computational logic. They are important in automated theorem proving by first-order resolution, because the resolvent of two Horn clauses is itself a Horn clause, and the resolvent of a goal clause and a definite clause is a goal clause. These properties of Horn clauses can lead to greater efficiencies in proving a theorem.

How to pronounce horn clause?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say horn clause in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of horn clause in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of horn clause in Pythagorean Numerology is: 8

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Horn_Clause
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Horn_Clause
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=horn clause