Examples of using Binary relation in English and their translations into Greek
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Orders are special binary relations.
Rel, sets with binary relations and relation preserving functions.
This definition agrees with the definition of union for binary relations.
Some important classes of binary relations over a set X are.
If R is a binary relation such that field(R)⊆ Γ+ and T is a Turing machine, then T calculates R if.
The standard signature for graphs is σgrph={E},where E is a binary relation symbol.
Set theory begins with a binary relation between an object o and a set A.
Structures are also a part of universal algebra; after all, some algebraic structures such as ordered groups have a binary relation<
A derived binary relation between two sets is the subset relation, also called set inclusion.
This section introduces ordered sets by building upon the concepts of set theory,arithmetic, and binary relations.
L∈ NP if, and only if, there exists a binary relation and a positive integer k such that the following two conditions are satisfied.
Like Foucault, Holloway wants stay connected with the million, multiple forms of resistance,which are irreducible to the binary relation between capital and labour.
Relations and functions; properties of binary relations, equivalence relations, partial orderings, chains and antichains.
In computational complexity theory and computability theory,a search problem is a type of computational problem represented by a binary relation.
More precisely, a binary operation on a set S is a binary relation that maps elements of the Cartesian product S× S to S.
The language of ordered abelian groups has one constant 0, one unary function-,one binary function+, and one binary relation≤.
In some fields, it is common to use infix notation for binary relations and functions, instead of the prefix notation defined above.
In mathematics the language of ordered abelian groups has one constant symbol 0, one unary function symbol-,one binary function symbol+, and one binary relation symbol≤.
Note that the graph of a partial function is a binary relation, and if T calculates a partial function then there is at most one possible output.
Ordered abelian groups[edit] In mathematics the language of ordered abelian groups has one constant symbol 0, one unary function symbol-,one binary function symbol+, and one binary relation symbol≤.
There exists a nonempty binary relation R{\displaystyle R} over the individuals of the lowest type, that is irreflexive, transitive, and strongly connected:∀ x, y{\displaystyle\forall x, y} and with codomain contained in domain.
Thus the formula(¬∀ x P( x)→∃ x¬ P( x)){\displaystyle(\lnot\forall xP(x)\to\exists x\lnot P(x))} might be written as(¬)→∃ x.{\displaystyle(\lnot)\to\exists x.} In some fields,it is common to use infix notation for binary relations and functions, instead of the prefix notation defined above.
In 1941, Tarski published an important paper on binary relations, which began the work on relation algebra and its metamathematics that occupied Tarski and his students for much of the balance of his life.
In 1929 he showed that much of Euclidean solid geometry could be recast as a first-order theory whose individuals are spheres(a primitive notion),a single primitive binary relation"is contained in", and two axioms that, among other things, imply that containment partially orders the spheres.
If one object consists of a set X with a binary relation R and the other object consists of a set Y with a binary relation S then an isomorphism from X to Y is a bijective function ƒ: X→ Y such that:[2].
In general terms, a calculus is a formal system that consists of a set of syntactic expressions(well-formed formulas), a distinguished subset of these expressions(axioms), plusa set of formal rules that define a specific binary relation, intended to be interpreted as logical equivalence, on the space of expressions.
This yields a convenient way of generating an equivalence relation: given any binary relation R on X, the equivalence relation generated by R is the smallest equivalence relation containing R. Concretely, R generates the equivalence relation if.
Like some parts of universal algebra, and in contrast with the other areas of model theory, it is mainly concerned with finite algebras, or more generally, with finite σ-structures for signatures σ which may contain relation symbols as in the following example: The standard signature for graphs is σgrph={E},where E is a binary relation symbol.