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  1. Embed this notice
    φ (fiore@brain.worm.pink)'s status on Friday, 31-Jan-2025 00:56:19 JST φ φ

    can someone teach me chomsky notation for grammars ina way that is actually intuitive ? like . why are those arrows ? it doesnt rlly make sense to me

    In conversation about 3 months ago from brain.worm.pink permalink
    • Embed this notice
      chjara (chjara@akko.wtf)'s status on Friday, 31-Jan-2025 00:56:17 JST chjara chjara
      in reply to
      @fiore it means that each lhs can generate a rhs. so like "E -> a ; E -> E + E" would mean that it's a possibility that E -> E + E -> a + E -> a + E + E -> a + a + E -> a + a + a
      run that in reverse and that's grammar recognition instead which is the main thing but the notation is about generation
      In conversation about 3 months ago permalink
      snacks likes this.
    • Embed this notice
      omen of instance annihilation (coolbean@brain.worm.pink)'s status on Friday, 31-Jan-2025 00:57:44 JST omen of instance annihilation omen of instance annihilation
      in reply to
      • reia~!
      @reia @fiore i cant read the word forth in normal contexts anymore
      In conversation about 3 months ago permalink
      snacks likes this.
    • Embed this notice
      reia~! (reia@linfan.moe)'s status on Friday, 31-Jan-2025 00:57:45 JST reia~! reia~!
      in reply to
      @fiore going a bit back and forth between the two ways of writing it down might actually help you a lot in grasping how it works. it really likes automata, but when it comes to context-sensitive grammars, or even context-free ones, just writing the productions is often way easier for it, and the automata it writes are often just a funny-looking conversion of these productions
      In conversation about 3 months ago permalink
    • Embed this notice
      φ (fiore@brain.worm.pink)'s status on Friday, 31-Jan-2025 00:57:46 JST φ φ
      in reply to
      • reia~!

      @reia yea ,, an arrow becomes just . an “element” i suppose ? makes sense . thx !!

      In conversation about 3 months ago permalink
    • Embed this notice
      reia~! (reia@linfan.moe)'s status on Friday, 31-Jan-2025 00:57:47 JST reia~! reia~!
      in reply to
      @fiore with regular languages going between state machine diagrams and grammars is actually very simple, for an arrow from state A to state B via character s you just do A -> sB
      In conversation about 3 months ago permalink
    • Embed this notice
      φ (fiore@brain.worm.pink)'s status on Friday, 31-Jan-2025 00:57:48 JST φ φ
      in reply to
      • chjara

      @chjara oh ok ill stick with diagrams then i suppose ,, they feel much much more intuitive to me

      In conversation about 3 months ago permalink
    • Embed this notice
      φ (fiore@brain.worm.pink)'s status on Friday, 31-Jan-2025 00:57:49 JST φ φ
      in reply to
      • chjara

      @chjara i cannot understand where the “states” and the “arrows” that would make up a state machine diagram are in this tho :/

      In conversation about 3 months ago permalink
    • Embed this notice
      chjara (chjara@akko.wtf)'s status on Friday, 31-Jan-2025 00:57:49 JST chjara chjara
      in reply to
      @fiore grammar classes have equivalent state/transition automata but i don't think there's a general straightforward mapping between the two
      In conversation about 3 months ago permalink

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