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Disjunctive
Disjunctive can refer to: * Disjunctive population, in population ecology, a group of plants or animals disconnected from the rest of its range * Disjunctive pronoun * Disjunctive set * Disjunctive sequence * Logical disjunction See also * Disjoint (other) * Disjunct (other) The term disjunct can refer to: * disjunct (linguistics) * disjunct or quincunx in astrology, an aspect made when two planets are 150 degrees, or five signs apart * a disjunct distribution in biology, one in which two closely related taxa are widely ... {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunctive Pronoun
A disjunctive pronoun is a stressed form of a personal pronoun reserved for use in isolation or in certain syntactic contexts. Examples and usage Disjunctive pronominal forms are typically found in the following contexts. The examples are taken from French, which uses the disjunctive first person singular pronoun ''moi''. The (sometimes colloquial) English translations illustrate similar uses of ''me'' as a disjunctive form. *in syntactically unintegrated disjunct (or "dislocated") positions :''Les autres s'en vont, mais moi, je reste.'' :: The others are leaving, but me, I'm staying. *in elliptical constructions (often "sentence fragments") with no verb (e.g. short answers) :''Qui veut du gâteau ? Moi.'' :: Who wants cake? Me. (cf. "I do") :''Il est plus âgé que moi.'' :: He is older than me. (cf. "I am") *in the main clause of a cleft sentence :''C'est moi que vous cherchez.'' :: It's me that you're looking for. Disjunctive pronouns are often semantically restricted. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunctive Sequence
A disjunctive sequence is an infinite sequence (over a finite alphabet of characters) in which every finite string appears as a substring. For instance, the binary Champernowne sequence :0\ 1\ 00\ 01\ 10\ 11\ 000\ 001 \ldots formed by concatenating all binary strings in shortlex order, clearly contains all the binary strings and so is disjunctive. (The spaces above are not significant and are present solely to make clear the boundaries between strings). The complexity function of a disjunctive sequence ''S'' over an alphabet of size ''k'' is ''p''''S''(''n'') = ''k''''n''.Bugeaud (2012) p.91 Any normal sequence (a sequence in which each string of equal length appears with equal frequency) is disjunctive, but the converse is not true. For example, letting 0''n'' denote the string of length ''n'' consisting of all 0s, consider the sequence :0\ 0^1\ 1\ 0^2\ 00\ 0^4\ 01\ 0^8\ 10\ 0^\ 11\ 0^\ 000\ 0^\ldots obtained by splicing exponentially long strings of 0s into the shortlex ord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logical Disjunction
In logic, disjunction is a logical connective typically notated as \lor and read aloud as "or". For instance, the English language sentence "it is raining or it is snowing" can be represented in logic using the disjunctive formula R \lor S , assuming that R abbreviates "it is raining" and S abbreviates "it is snowing". In classical logic, disjunction is given a truth functional semantics according to which a formula \phi \lor \psi is true unless both \phi and \psi are false. Because this semantics allows a disjunctive formula to be true when both of its disjuncts are true, it is an ''inclusive'' interpretation of disjunction, in contrast with exclusive disjunction. Classical proof theoretical treatments are often given in terms of rules such as disjunction introduction and disjunction elimination. Disjunction has also been given numerous non-classical treatments, motivated by problems including Aristotle's sea battle argument, Heisenberg's uncertainty principle, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunctive Population
A disjunctive population, in ecology, is a colony of plants or animals, whose geographical locus is severed from the continuous range of the bulk of the species distribution. Although a disjunctive population may sometimes occur on an island,A.W.D. Larkum, Robert Joseph Orth and Carlos M. Duarte. 2006 which creates physical separation via water, a large percentage of disjunctive populations are separated from their main range simply by landmass. In some cases a disjunctive population represents a relatively small outlier population from the main range, but in other cases, such as for the painted hunting dog, ''Lycaon pictus'', the entire population is scattered (throughout much of Africa) and is intrinsically disjunctive. See also * Ecological island * Disjunct distribution In biology, a taxon with a disjunct distribution is one that has two or more groups that are related but considerably separated from each other geographically. The causes are varied and might demonstrate eithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunctive Set
In mathematics and computer science, the syntactic monoid M(L) of a formal language L is the smallest monoid that recognizes the language L. Syntactic quotient The free monoid on a given set is the monoid whose elements are all the strings of zero or more elements from that set, with string concatenation as the monoid operation and the empty string as the identity element. Given a subset S of a free monoid M, one may define sets that consist of formal left or right inverses of elements in S. These are called quotients, and one may define right or left quotients, depending on which side one is concatenating. Thus, the right quotient of S by an element m from M is the set :S \ / \ m=\. Similarly, the left quotient is :m \setminus S=\. Syntactic equivalence The syntactic quotient induces an equivalence relation on M, called the syntactic relation, or syntactic equivalence (induced by S). The ''right syntactic equivalence'' is the equivalence relation :s \sim_S t \ \Leftrigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjoint (other)
Disjoint may refer to: *Disjoint sets, sets with no common elements *Mutual exclusivity, the impossibility of a pair of propositions both being true See also *Disjoint union *Disjoint-set data structure In computer science, a disjoint-set data structure, also called a union–find data structure or merge–find set, is a data structure that stores a collection of Disjoint sets, disjoint (non-overlapping) Set (mathematics), sets. Equivalently ... {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
