trivial diagram
91Controlled grammar — Controlled grammars[1] are a class of grammars that extend, usually, the context free grammars with additional controls on the derivations of a sentence in the language. A number of different kinds of controlled grammars exist, the four main… …
92Non-critical string theory: Lorentz invariance — Usually non critical string theory is considered in frames of the approach proposed by Polyakov [1]. The other approach has been developed in [2] [3] [4]. It represents a universal method to maintain explicit Lorentz invariance in any quantum… …
93Technicolor (física) — Las teorías Technicolor son modelos de física Más allá del modelo estándar que nos llevan a la ruptura de la simetría electrodébil, el mecanismo por el cual las partículas elementales adquieren masa. Las primeras teorías technicolor se basaron en …
94Chess — This article is about the Western board game. For other chess games or other uses, see Chess (disambiguation). Chess From left to right: a whit …
95Electromagnetic radiation — Electromagnetism Electricity · …
96Set (mathematics) — This article gives an introduction to what mathematicians call intuitive or naive set theory; for a more detailed account see Naive set theory. For a rigorous modern axiomatic treatment of sets, see Set theory. The intersection of two sets is… …
97Natural deduction — In logic and proof theory, natural deduction is a kind of proof calculus in which logical reasoning is expressed by inference rules closely related to the natural way of reasoning. This contrasts with the axiomatic systems which instead use… …
98Dicyclic group — In group theory, a dicyclic group (notation Dicn) is a member of a class of non abelian groups of order 4n (n > 1). It is an extension of the cyclic group of order 2 by a cyclic group of order 2n, giving the name di cyclic. In the… …
99Natural number object — In category theory, a natural number object (NNO) is an object endowed with a recursive structure similar to natural numbers. More precisely, in a category E with a terminal object 1 (alternately, a topos), an NNO N is given by: a global element… …
100Mass gap — Quantum field theory (Feynman diagram) …
