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See searches and references containing LOGICAL SCHEMA!LOGICAL SCHEMA
Representation of an organization's data
A logical data model or logical schema is a data model of a specific problem domain expressed independently of a particular database management product
Logical_schema
Representation of a data design
view of the data, or the conceptual schema that is the integration of a set of external schemas. The logical schema was the way data were represented to
Physical_schema
Logical arrangement of computing tables in a multidimensional database
In computing, a snowflake schema or snowflake model is a logical arrangement of tables in a multidimensional database such that the entity relationship
Snowflake_schema
Type of data transparency
the same relation. Logical data independence indicates that the conceptual schema can be changed without affecting the existing schemas. The physical structure
Data_independence
Visual representation of database system relationships
a logical data storage structure. An Oracle database associates a separate schema with each database user. A schema comprises a collection of schema objects
Database_schema
Creating a model of the data in a system
model. Simply described, a conceptual schema is the first step in organizing the data requirements. Logical schema: describes the structure of some domain
Data_modeling
Type of data model
in an EAV database, the "physical schema" (the way data are stored) is radically different from the "logical schema" – the way users, and many software
Entity–attribute–value_model
Precisely specified semantic version of a statement
schema, like natural language and involving logical connectives, which are joined by juxtaposition to other sentences, which in turn may have logical
Logical_form
Relationship where one statement follows from another
Logical consequence (also entailment or logical implication) is a fundamental concept in logic which describes the relationship between statements that
Logical_consequence
Statement that is taken to be true
for reasoning. In mathematics, an axiom may be a "logical axiom" or a "non-logical axiom". Logical axioms are taken to be true within the system of logic
Axiom
Standard system of axiomatic set theory
independently proposed replacing the axiom schema of specification with the axiom schema of replacement. Appending this schema, as well as the axiom of regularity
Zermelo–Fraenkel_set_theory
Concept in axiomatic set theory
popular versions of axiomatic set theory, the axiom schema of specification, also known as the axiom schema of separation (Aussonderungsaxiom), subset axiom
Axiom_schema_of_specification
Concept in logic
logically equivalent if they have the same truth value in every model. The logical equivalence of p {\displaystyle p} and q {\displaystyle q} is sometimes
Logical_equivalence
Testing device for logical soundness
The T-schema ("truth schema", not to be confused with "Convention T") is used to check if an inductive definition of truth is valid, which lies at the
T-schema
Horizontal partition of data in a database or search engine
instances of the schema. An advantage is that the search load for the large partitioned table can be distributed across multiple servers (logical or physical)
Shard_(database_architecture)
Logical connective OR
logic, disjunction (also known as logical disjunction, logical or, logical addition, or inclusive disjunction) is a logical connective typically notated as
Logical_disjunction
Statement that is true regardless of the truth or falsity of its constituent propositions
Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth
Logical_truth
Test of machine intelligence
The Winograd schema challenge (WSC) is a test of machine intelligence proposed in 2012 by Hector Levesque, a computer scientist at the University of Toronto
Winograd_schema_challenge
Formal mechanism for describing XML documents
will show the source XSD, logical and physical views for a simple schema. <?xml version="1.0" encoding="utf-8" ?> <xs:schema elementFormDefault="qualified"
XML_Schema_editors
Method of deriving conclusions
from premises. They are integral parts of formal logic, serving as the logical structure of valid arguments. If an argument with true premises follows
Rule_of_inference
System of formal deduction in logic
Hilbert systems are characterized by the use of numerous schemas of logical axioms. An axiom schema is an infinite set of axioms obtained by substituting
Hilbert_system
Indian Mahayana Buddhist philosopher (c. 150–c. 250)
of the Indian logical tool of the tetralemma (Sanskrit: catuṣkoṭi, "four corners") to attack versions of substance theory. This schema relies on four
Nagarjuna
Recurring structure in cognitive processes
An image schema (both schemas and schemata are used as plural forms) is a recurring structure within our cognitive processes which establishes patterns
Image_schema
Assignment of meaning to the symbols of a formal language
inductively using the T-schema, which is a definition of first-order semantics developed by Alfred Tarski. The T-schema interprets the logical connectives using
Interpretation_(logic)
In logic, a statement which is always true
interpretation of its component terms, with only the logical constants having a fixed meaning. It is a logical truth. For example, a formula that states "the
Tautology_(logic)
Logical operation
In logic, negation, also called the logical not or logical complement, is an operation that takes a proposition P {\displaystyle P} to another proposition
Negation
Argument whose conclusion must be true if its premises are
of an argument can be tested, proved or disproved, and depends on its logical form. In logic, an argument is a set of related statements expressing the
Validity_(logic)
Symbol connecting formulas in logic
In logic, a logical connective (also called a logical operator, sentential connective, or sentential operator) is an operator that combines or modifies
Logical_connective
Type of logical system
a small number of rules of inference, along with several infinite schemas of logical axioms. It is common to have only modus ponens and universal generalization
First-order_logic
Schema for knowledge representation
RDF Schema (Resource Description Framework Schema, variously abbreviated as RDFS, RDF(S), RDF-S, or RDF/S) is a set of classes with certain properties
RDF_Schema
Attempt to persuade or to determine the truth of a conclusion
premises—sentences, statements, or propositions—directed towards arriving at a logical conclusion. The purpose of an argument is to give reasons for one's thinking
Argument
One of the nāstika or "heterodox" schools of ancient Indian philosophy
on the acceptance of the four-fold formula. This may mean that such logical schema was a common feature of the pre-Buddhist era. Alternatively, since there
Ajñana
Mathematical model for deduction or proof systems
with the deductive nature of the system. The logical consequence (or entailment) of the system by its logical foundation is what distinguishes a formal system
Formal_system
Three-schema-architecture that separated an external schema, logical schema and internal schema. For Oracle's product line, the internal schema corresponded
Oracle_Designer
Value indicating the relation of a proposition to truth
In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth, which in classical
Truth_value
Logical connective AND
\wedge } ) is the truth-functional operator of conjunction or logical conjunction. The logical connective of this operator is typically represented as ∧ {\displaystyle
Logical_conjunction
High-level database design model
A conceptual schema or conceptual data model is a high-level description of informational needs underlying the design of a database. It typically includes
Conceptual_schema
Mathematical use of "for all"
mathematical logic, a universal quantification is a type of quantifier, a logical constant which is interpreted as "given any", "for all", "for every", or
Universal_quantification
Open source object-relational mapping framework
customer, retrieving it from the Orders table. The logical schema and its mapping with the physical schema is represented as an Entity Data Model (EDM), specified
Entity_Framework
Axiomatic set theories based on the principles of mathematical constructivism
{\mathrm {PEM} }} for the formulas permitted in one's adopted Separation schema, by Diaconescu's theorem. Similar results hold for the Axiom of Regularity
Constructive_set_theory
Mathematical table used in logic
functional values of logical expressions on each of their functional arguments, that is, for each combination of values taken by their logical variables. In
Truth_table
If and only if relation
In logic and mathematics, the logical biconditional, also known as material biconditional or equivalence or bidirectional implication or biimplication
Logical_biconditional
Database process
subsumption. The logical encodings of these relationships are what they mean. Among others, an early attempt to use description logics for schema integration
Schema_matching
Symbol representing a property or relation in logic
In logic, a predicate is a non-logical symbol that represents a property or a relation, though, formally, does not need to represent anything at all.
Predicate_(logic)
Study of the semantics, or interpretations, of formal and natural languages
validity, and logical consequence. While logical syntax concerns the formal rules for constructing well-formed expressions, logical semantics establishes
Semantics_(logic)
3-volume treatise on mathematics, 1910–1913
are "stand-ins" for strings; this form of notation is called an "axiom schema" (i.e., there is a countable number of specific forms the notation could
Principia_Mathematica
Type of logic diagram
the subject. Every categorical proposition can be reduced to one of four logical forms, named A, E, I, and O based on the Latin affirmo (I affirm), for
Square_of_opposition
Storage location for database objects
storage locations, not the logical database structure, or database schema. For instance, different objects in the same schema may have different underlying
Tablespace
Approach to building information systems
The three-schema approach, or three-schema concept, in software engineering is an approach to building information systems and systems information management
Three-schema_approach
Mathematical theory of data types
Gregory Bateson introduced a theory of logical types into the social sciences; his notions of double bind and logical levels are based on Russell's theory
Type_theory
Diagram that shows all possible logical relations between a collection of sets
A Venn diagram is a widely used diagram style that shows the logical relation between sets, popularized by John Venn (1834–1923) in the 1880s. The diagrams
Venn_diagram
A white pages schema is a data model, specifically a logical schema, for organizing the data contained in entries in a directory service, database, or
White_pages_schema
Algebraic manipulation of "true" and "false"
the values of the variables are numbers. Second, Boolean algebra uses logical operators such as conjunction (and) denoted as ∧, disjunction (or) denoted
Boolean_algebra
Paradox in set theory
\forall y\,(\forall z\,(z\in x\iff z\in y)\implies x=y)} and the axiom schema of unrestricted comprehension: ∃ y ∀ x ( x ∈ y ⟺ φ ( x ) ) {\displaystyle
Russell's_paradox
Data interface description language
support the full range of possible constraints expressions. XML schema and JSON schema both support similar constraints concepts. Tool support for constraints
ASN.1
Symbols requiring interpretation
In mathematical logic, especially model theory, non-logical symbols are elements of a formal language whose interpretation may change depending on the
Non-logical_symbol
Rule by which a concept is associated with a sensory input in Kantianism
In Kantian philosophy, a transcendental schema (plural: schemata; from Ancient Greek: σχῆμα, 'form, shape, figure') is the procedural rule by which a category
Schema_(Kant)
Symbol with a fixed meaning in logic
types of logical constants are logical connectives and quantifiers. The equality predicate (usually written '=') is also treated as a logical constant
Logical_constant
Type of logical argument that applies deductive reasoning
Greek: συλλογισμός, syllogismos, 'conclusion, inference') is a kind of logical argument that applies deductive reasoning to arrive at a conclusion based
Syllogism
Mathematical logic concept
proposition types. In traditional logic, the process of contraposition is a schema composed of several steps of inference involving categorical propositions
Contraposition
Axioms for the natural numbers
and replacing the second-order induction axiom with a first-order axiom schema. The term Peano arithmetic is sometimes used for specifically naming this
Peano_axioms
Form of mathematical proof
Axiomatizing arithmetic induction in first-order logic requires an axiom schema containing a separate axiom for each possible predicate. The article Peano
Mathematical_induction
Type of data modeling language
definition of the data resource referred to as a “conceptual schema.” The “conceptual schema” provides a single integrated definition of the data within
IDEF1X
Logical connective
can be semantically established by the method of analytic tableaux. The logical rules are The semantic definition by truth tables does not permit the examination
Material_conditional
Proposed database management system design standard
There is only one internal schema per database. The overall description of a database is called the database schema. Three schema approach View model ANSI/X3/SPARC
ANSI-SPARC_Architecture
Markup language and file format
document's logical structure. XSDs also use an XML-based format, which makes it possible to use ordinary XML tools to help process them. xs:schema element
XML
Archival strategy for digital objects
The interface to the UVC emulator (Logical Data Viewer) The definition of the logical data schema or LDS (the schema to read schemata) The convention must
UVC-based_preservation
Non-contradiction of a theory
In deductive logic, a consistent theory is one that does not lead to a logical contradiction. A theory T {\displaystyle T} is consistent if there is no
Consistency
Subfield of mathematics
'algebra of logic', and, more recently, simply 'formal logic', is the set of logical theories elaborated in the course of the nineteenth century with the aid
Mathematical_logic
Directory service, created by Microsoft for Windows domain networks
structure, a collection of trees with a standard global catalog, directory schema, logical structure, and directory configuration. The forest is a secure boundary
Active_Directory
Establishment of a theorem using inference from the axioms
semantics (i.e. what they mean). A formal system (also called a logical calculus, or a logical system) consists of a formal language together with a deductive
Formal_proof
Linguistics theory about syntax
and a theory of syntactic category formation that proposes a universal schema for how phrases are organized. It suggests that all phrases share a common
X-bar_theory
Designing how data is held in a database
formalized in a diagram or schema. At this stage, it is a conceptual schema. One of the most common types of conceptual schemas is the ER (entity–relationship
Database_design
Impossible task in computing
statement is universally valid if and only if it can be deduced using logical rules and axioms, so the Entscheidungsproblem can also be viewed as asking
Entscheidungsproblem
XML grammar for geographical features
property references. GML profiles are logical restrictions to GML, and may be expressed by a document, an XML schema or both. These profiles are intended
Geography_Markup_Language
In mathematics, a statement that has been proven
of a theorem is a logical argument that uses the inference rules of a deductive system to establish that the theorem is a logical consequence of the
Theorem
Infinite cardinal number
proof Formal semantics Foundations of mathematics Information theory Lemma Logical consequence Model Theorem Theory Type theory Theorems (list), paradoxes
Aleph_number
Proposed model on executive functioning of attentional control
become activated or suppressed for routine and non-routine circumstances. Schemas, or scripts, specify an individual's series of actions or thoughts under
Supervisory attentional system
Supervisory_attentional_system
Approach to logic
logic in the late nineteenth century. However, even if eclipsed by newer logical systems, term logic still plays a significant role in the study of logic
Term_logic
truths can be reduced to logical truths, and all objects forming the subject matter of those branches of mathematics are logical objects. In other words
Mathematical_object
School of thought in philosophy of mathematics
of an ordered pair is derivable from the axiom of infinity and the axiom schema of replacement and is required in the definition of the von Neumann numerals
Logicism
Template that specifies one or more axioms
mathematical logic, an axiom schema (plural: axiom schemata or axiom schemas) is a rule or template that specifies a family of axioms. A schema contains placeholders
Axiom_schema
Logical principle
his discussion on the sea battle. It would seem to entail fatalism or logical determinism; and for this reason, the Stoics like Chrysippus affirmed it
Law_of_excluded_middle
Symbol representing a mathematical concept
formal systems particularly mathematical logic, a function symbol is a non-logical symbol which represents a function or mapping on the domain of discourse
Function_symbol
System of mathematical set theory
into a set theory with classes. First, the axiom schema of class comprehension is added. This axiom schema states: For every formula ϕ ( x 1 , … , x n )
Von Neumann–Bernays–Gödel set theory
Von_Neumann–Bernays–Gödel_set_theory
Syntactically correct logical formula
quantifier-free formula. An atomic formula is a formula that contains no logical connectives nor quantifiers, or equivalently a formula that has no strict
Well-formed_formula
Programming language
Programming. ABAP was one of the first languages to include the concept of Logical Databases (LDBs), which provides a high level of abstraction from the basic
ABAP
Model or diagram describing interrelated things
abstraction. The conceptual-logical-physical hierarchy below is used in other kinds of specification, and is different from the three schema approach to software
Entity–relationship_model
Set of sentences in a formal language
statements are taken as axioms. In a deductive theory, any sentence that is a logical consequence of one or more of the axioms is also a sentence of that theory
Theory_(mathematical_logic)
Whether a decision problem has an effective method to derive the answer
decidable if there exists an effective method for deriving the correct answer. Logical systems are decidable if membership in their set of logically valid formulas
Decidability_(logic)
Kind of transfinite induction
property. Considered as an axiomatic principle, it is called the axiom schema of set induction. The principle implies transfinite induction and recursion
Epsilon-induction
Form of reasoning
focuses on rules of inference, that is, schemas of drawing a conclusion from a set of premises based only on their logical form. There are various rules of inference
Deductive_reasoning
Token in a mathematical or logical formula
formal language need not be symbols of anything. For instance there are logical constants which do not refer to any idea, but rather serve as a form of
Symbol_(formal)
Term in mathematical logic
combinations of the sentences being true or false are consistent. Since 2000, logical independence has become understood as having crucial significance in the
Independence (mathematical logic)
Independence_(mathematical_logic)
documentation such as, e.g., natural language descriptions, (legacy) logical schemas, or other metadata and consequently decomposing this scope in elicitation
Business_semantics_management
Philanthropy conception of meaning
psychological theories, involving notions of thought, intention, or understanding; logical theories, involving notions such as intension, cognitive content, or sense
Meaning_(philosophy)
Term in logic and deductive reasoning
that can be proven in the system is logically valid with respect to the logical semantics of the system. These two properties are different but closely
Soundness
Mathematical-logic system based on functions
substitution, as used in β-reduction Harrop formula – A kind of constructive logical formula such that proofs are lambda terms Interaction nets Kleene–Rosser
Lambda_calculus
Modeling language for describing general text and binary data
and location of a person: The logical model for this data can be described by the following fragment of an XML Schema document. The order, names, types
Data Format Description Language
Data_Format_Description_Language
Branch of mathematics that studies sets
contradiction. Specifically, Frege's Basic Law V (now known as the axiom schema of unrestricted comprehension). According to Basic Law V, for any sufficiently
Set_theory
LOGICAL SCHEMA
LOGICAL SCHEMA
Boy/Male
Hindu
Love and kindness, Analytical, Logical
Boy/Male
Indian, Sanskrit
Logician
Girl/Female
Native American
Magical dancer.
Boy/Male
Indian, Sanskrit
Endowed with Mind; Logical
Boy/Male
Hindu, Indian
Logical
Boy/Male
Indian
Intelligent, Logical
Boy/Male
Tamil
Love and kindness, Analytical, Logical
Girl/Female
African, Arabic, French, Indian, Muslim, Swahili, Tamil
Intelligent; Logical; Intelligent One who Reasons; Wise
Girl/Female
Australian, French, Swedish
Elf; Magical Counsel
Boy/Male
Hindu, Indian
A Magical Sword
Boy/Male
Gujarati, Hindu, Indian, Sanskrit
Logical Science
Girl/Female
Indian, Tamil
King Rama's Wife
Girl/Female
Indian, Modern, Sanskrit
Magical
Girl/Female
Hindu, Indian
Give Light to Others
Girl/Female
Indian
Successful; Logical Thinkers
Girl/Female
Hindu
Girl/Female
Danish, Hindu, Indian, Japanese
Ray of Light; Logical
Boy/Male
German, Swedish
Elf; Magical Army; Warrior
Girl/Female
Tamil
Give light to others
Boy/Male
Tamil
Intelligent, Logical
LOGICAL SCHEMA
LOGICAL SCHEMA
Girl/Female
French
or Jeanne.
Boy/Male
Indian, Punjabi, Sikh
One who Loves Being with God
Boy/Male
Hindu, Indian, Tamil
Lord Krishna
Girl/Female
Muslim
Fur
Male
Spanish
Spanish form of Latin Gervasius, GERVASI means "spear servant."
Boy/Male
Arabic, Muslim
Light of Vision
Boy/Male
Indian, Sanskrit
Whose Eyes Reflect Auspiciousness
Girl/Female
Arabic, Muslim
Bright; Shining
Girl/Female
Hindu, Indian
A Silk Cotton Tree
Surname or Lastname
English (mainly northern Ireland)
English (mainly northern Ireland) : variant of Stenson 1.
LOGICAL SCHEMA
LOGICAL SCHEMA
LOGICAL SCHEMA
LOGICAL SCHEMA
LOGICAL SCHEMA
a.
Logical.
a.
Having or observing logical sequence; logically consistent and rigorous; consecutive in development or transition of thought.
n.
See Logic.
a.
Half logical; partly logical; said of fallacies.
a.
Excessively logical; adhering too closely to the forms or rules of logic.
a.
According to the rules of logic; as, a logical argument or inference; the reasoning is logical.
a.
Having the form of, or resembling, a geometrical cone; round and tapering to a point, or gradually lessening in circumference; as, a conic or conical figure; a conical vessel.
n.
A treatise on logic; as, Mill's Logic.
pl.
of Lorica
n.
A person skilled in logic.
n.
A logical deduction.
a.
Exciting mirth; droll; laughable; as, a comical story.
a.
Having a mixture of seriousness and sport; serious and comical.
v. t.
Consistent; logical.
a.
Of or pertaining to the nodes; from a node to the same node again; as, the nodical revolutions of the moon.
n.
Of or pertaining to a place; limited; logical application; as, a topical remedy; a topical claim or privilege.
adv.
In a logical manner; as, to argue logically.
a.
Of or pertaining to logic; used in logic; as, logical subtilties.
a.
Ignorant or negligent of the rules of logic or correct reasoning; as, an illogical disputant; contrary of the rules of logic or sound reasoning; as, an illogical inference.
a.
Skilled in logic; versed in the art of thinking and reasoning; as, he is a logical thinker.