EntityQ1076039· pop 24· linked from 20 articlesChomsky normal formSign in to saveform for context-free grammarsConnectionsformal grammarEntitycontext-free grammarEntityterminal and nonterminal symbolsEntityNoam ChomskyPersonInternational Standard Book NumberEntityQ15777Entitydigital object identifierEntitycompilerEntityexponentiationEntityDonald KnuthEntityOCLC, Inc.Entityformal languageEntitymathematical expressionEntityautomata theoryEntityparsingEntityBackus–Naur formEntityChomsky hierarchyEntityQ22908627EntityIlan PappéEntityRobert W. FloydEntityCategoriesFormal languagesNoam Chomsky