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    • CommentRowNumber1.
    • CommentAuthorUlrik
    • CommentTimeMay 27th 2017

    I’ve created the entry Ehrenfeucht-Fraïssé games and recorded the basic definitions and results (partly inspired by jesse’s efforts to add some model theory content to the nlab). I’m running out of steam now, but we should also mention the connections to quantifier elimination and Scott rank. (I’ve added a redirect from back-and-forth argument which was requested at quantifier elimination.)

    • CommentRowNumber2.
    • CommentAuthorjesse
    • CommentTimeMay 27th 2017

    This looks great. Thanks, Ulrik!

  1. Add a link to Ehrenfeucht-Fraisse comonad

    Eigil Rischel

    diff, v6, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeJul 14th 2021
    • (edited Jul 14th 2021)


    to structures are elementary equivalent.


    two structures are elementary equivalent.

      two [[structures in model theory|structures]] are [[elementary equivalence|elementary equivalent]].

    diff, v7, current