first order complexity
11Descriptive complexity — is a branch of finite model theory, a subfield of computational complexity theory and mathematical logic, which seeks to characterize complexity classes by the type of logic needed to express the languages in them. For example, PH, the union of… …
12RE (complexity) — In computability theory and computational complexity theory, RE (recursively enumerable) is the class of decision problems for which a yes answer can be verified by a Turing machine in a finite amount of time.[1] Informally, it means that if the… …
13SNP (complexity) — In computational complexity theory, SNP (from Strict NP) is a complexity class containing a limited subset of NP based on its logical characterization in terms of graph theoretical properties. It forms the basis for the definition of the class… …
14P (complexity) — In computational complexity theory, P, also known as PTIME or DTIME(nO(1)), is one of the most fundamental complexity classes. It contains all decision problems which can be solved by a deterministic Turing machine using a polynomial amount of… …
15NL (complexity) — In computational complexity theory, NL (Nondeterministic Logarithmic space) is the complexity class containing decision problems which can be solved by a nondeterministic Turing machine using a logarithmic amount of memory space. NL is a… …
16L (complexity) — In computational complexity theory, L (also known as LSPACE) is the complexity class containing decision problems which can be solved by a deterministic Turing machine using a logarithmic amount of memory space. Logarithmic space is sufficient to …
17FO (complexity) — In descriptive complexity theory, FO is the complexity class of all languages which can be specified using first order logic. Adding the BIT predicate results in the class FO+BIT. In circuit complexity, FO can be shown to be equal to AC0, the… …
18Irreducible complexity — This article covers irreducible complexity as used by those who argue for intelligent design. For information on irreducible complexity as used in Systems Theory, see Irreducible complexity (Emergence). Irreducible complexity (IC) is an argument… …
19Model of hierarchical complexity — The model of hierarchical complexity, is a framework for scoring how complex a behavior is. It quantifies the order of hierarchical complexity of a task based on mathematical principles of how the information is organized and of information… …
20Model of Hierarchical Complexity — The model of hierarchical complexity is a framework for scoring how complex a behavior is. It quantifies the order of hierarchical complexity of a task based on mathematical principles of how the information is organized and of information… …
