nondeterministically
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2-satisfiability — In computer science, 2 satisfiability (abbreviated as 2 SAT or just 2SAT) is the problem of determining whether a collection of two valued (Boolean or binary) variables with constraints on pairs of variables can be assigned values satisfying all… … Wikipedia
NP (complexity) — Diagram of complexity classes provided that P ≠ NP. The existence of problems outside both P and NP complete in this case was established by Ladner.[1] In computational complexity theory, NP is one of the most fundamental complexity classes. The… … Wikipedia
Immerman–Szelepcsényi theorem — The Immerman–Szelepcsényi Theorem was proven independently by Neil Immerman and Róbert Szelepcsényi in 1987, for which they shared the 1995 Gödel Prize. In its general form the theorem states that NSPACE = co NSPACE. In other words, if a… … Wikipedia
Cigarette smokers problem — This article is about the computer science problem. For problems that may affect cigarette smokers, see health effects of tobacco. The cigarette smokers problem is a concurrency problem in computer science, originally described in 1971 by S. S.… … Wikipedia
Primality test — A primality test is an algorithm for determining whether an input number is prime. Amongst other fields of mathematics, it is used for cryptography. Unlike integer factorization, primality tests do not generally give prime factors, only stating… … Wikipedia
Communicating sequential processes — In computer science, Communicating Sequential Processes (CSP) is a formal language for describing patterns of interaction in concurrent systems.[1] It is a member of the family of mathematical theories of concurrency known as process algebras, or … Wikipedia
Calculus of Broadcasting Systems — (CBS) is a CCS like calculus where processes speak one at a time and each is heard instantaneously by all others. Speech is autonomous, contention between speakers being resolved nondeterministically, but hearing only happens when someone else… … Wikipedia
Space hierarchy theorem — In computational complexity theory, the space hierarchy theorems are separation results that show that both deterministic and nondeterministic machines can solve more problems in (asymptotically) more space, subject to certain conditions. For… … Wikipedia
Guarded Command Language — The Guarded Command Language (GCL) is a language defined by Edsger Dijkstra for predicate transformer semantics cite web | last=Dijkstra | first=Edsger W | authorlink=E. W. Dijkstra | url=http://www.cs.utexas.edu/users/EWD/ewd04xx/EWD472.PDF |… … Wikipedia
Alternating finite automaton — In automata theory, an alternating finite automaton (AFA) is a nondeterministic finite automaton whose transitions are divided into existential and universal transitions. For example, let A be an alternating automaton.* For an existential… … Wikipedia
