Erasing Rules

Erasing Rules

In a Formal grammar, an Erasing Rule is a rule which maps a string of symbols to the empty string (ε).

Formal Definition

The Erasing Rules are ε-productions like

A o epsilon

Cleaning Erasing Rules


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Simple precedence grammar — A simple precedence grammar is a context free formal grammar that can be parsed with a simple precedence parser. TOC =Formal definition=G = ( N , Sigma;, P , S ) is a simple precedence grammar if all the production rules in P comply with the… …   Wikipedia

  • Activities prohibited on Shabbat — Main article: Shabbat See also: Shomer Shabbat and Rabbinically prohibited activities of Shabbat The commandment to keep Shabbat as a day of rest is repeated many times in the Tanakh, the Hebrew Bible. (See for example Exodus 31:12 17 quoted …   Wikipedia

  • automata theory — Body of physical and logical principles underlying the operation of any electromechanical device (an automaton) that converts information input in one form into another, or into some action, according to an algorithm. Norbert Wiener and Alan M.… …   Universalium

  • The World Ends with You — Left to right, Joshua, Neku, Beat (above), Shiki, and Rhyme Developer(s) Square Enix Jupiter …   Wikipedia

  • List of Eureka episodes — The following is a list of episodes for the American science fiction drama Eureka. In addition to the regularly televised episodes, there is a short webisode series called Hide and Seek , which is available on Syfy s Eureka homepage. The episodes …   Wikipedia

  • swimming — swimmingness, n. /swim ing/, n. 1. the act of a person or thing that swims. 2. the skill or technique of a person who swims. 3. the sport of swimming. adj. 4. pertaining to, characterized by, or capable of swimming. 5. used in or for swimming:… …   Universalium

  • Turing machine — For the test of artificial intelligence, see Turing test. For the instrumental rock band, see Turing Machine (band). Turing machine(s) Machina Universal Turing machine Alternating Turing machine Quantum Turing machine Read only Turing machine… …   Wikipedia

  • Holocaust denial — Antisemitism Part of Jewish history …   Wikipedia

  • List of Death Note episodes — Death Note is an anime series based on the manga series written by Tsugumi Ohba and illustrated by Takeshi Obata. Death Note aired in Japan on the Nippon Television (NTV) network every Tuesday at 24:56 [1] The series began broadcasting on NTV on… …   Wikipedia

  • Customary law in South Africa — South African customary law refers to that usually uncodified legal system developed and practiced by the indigenous communities of South Africa. Customary law has been defined as an established system of immemorial rules [...] evolved from the… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”