In logic, disjunction, also known as logical disjunction or logical or or logical addition or inclusive disjunction, is a logical connective typically...

Exclusive or, exclusive disjunction, exclusive alternation, logical non-equivalence, or logical inequality is a logical operator whose negation is the...

British mathematician. The rules allow the expression of conjunctions and disjunctions purely in terms of each other via negation. The rules can be expressed...

In propositional logic, disjunction elimination (sometimes named proof by cases, case analysis, or or elimination) is the valid argument form and rule...

Disjunction introduction or addition (also called or introduction) is a rule of inference of propositional logic and almost every other deduction system...

it asserts that one among a number of alternatives must be true. This disjunction is problematic because it oversimplifies the choice by excluding viable...

In mathematical logic, the disjunction and existence properties are the "hallmarks" of constructive theories such as Heyting arithmetic and constructive...

In logic, the term conditional disjunction can refer to: conditioned disjunction, a ternary logical connective introduced by Alonzo Church a rule in classical...

In logic, conditioned disjunction (sometimes called conditional disjunction) is a ternary logical connective introduced by Church. Given operands p, q...

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division (mitosis/meiosis). There are three...

 Distribution of   conjunction   over   disjunction  ( P ∨ ( Q ∧ R ) ) ⇔ ( ( P ∨ Q ) ∧ ( P ∨ R ) )  Distribution of   disjunction   over   conjunction  ( P ∧ (...

P ∨ Q {\displaystyle P\lor Q} . Common connectives include negation, disjunction, conjunction, implication, and equivalence. In standard systems of classical...

XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs...

Mordenkainen is a fictional wizard from the World of Greyhawk campaign setting for the Dungeons & Dragons roleplaying game. He was created by Gary Gygax...

Mitral annular disjunction (MAD) is a structural abnormality of the heart in the mitral annulus ring. It is generally defined as an abnormal displacement...

CNF: CNF → (Disjunction) ∧ {\displaystyle \land } CNF CNF → (Disjunction) Disjunction → Literal ∨ {\displaystyle \lor } Disjunction Disjunction → Literal...

In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its...

worked extensively on a phenomenon that is now called the "Asa Gray disjunction", namely, the surprising morphological similarities between many eastern...

logic and Boolean algebra, there is a duality between conjunction and disjunction, also called the duality principle. It is the most widely known example...

Field propulsion is the concept of spacecraft propulsion where no propellant is necessary but instead momentum of the spacecraft is changed by an interaction...

In Boolean logic, logical NOR, non-disjunction, or joint denial is a truth-functional operator which produces a result that is the negation of logical...

In formal semantics, a Hurford disjunction is a disjunction in which one of the disjuncts entails the other. The concept was first identified by British...

conjunction or meet ∧, and ring addition to exclusive disjunction or symmetric difference (not disjunction ∨, which would constitute a semiring). Conversely...

disjunction introduction but keep disjunctive syllogism and transitivity. In this approach, rules of natural deduction hold, except for disjunction introduction...

three-step argument, and the use of a logical disjunction (any "or" statement.) For example, "P or Q" is a disjunction, where P and Q are called the statement's...

the conjunction of Γ entails the disjunction of Δ (though we mean the "multiplicative" conjunction and disjunction, as explained below). Girard describes...

a disjunctive clause (a disjunction of literals) with at most one positive, i.e. unnegated, literal. Conversely, a disjunction of literals with at most...

(DNF) is a canonical normal form of a logical formula consisting of a disjunction of conjunctions; it can also be described as an OR of ANDs, a sum of...

Polish notation by Łukasiewicz (but not as ||, often used to represent disjunction). Its dual is the NOR operator (also known as the Peirce arrow, Quine...

addition, and as logically equivalent to the exclusive-or (exclusive disjunction) binary logic operation. In this case it can be used for only very simple...