Meaning of dots in Lattice / Galois Connection

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Wondering what the dots mean (and what the whole element it's a part of means) in the slide below (above pos and neg). I have seen them in another similar presentation on data-flow lattices and Galois connections.



enter image description here




lattice-orders galois-connections




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  • The context appears to be ocw.mit.edu/courses/electrical-engineering-and-computer-science/…
    – MJD
    Jul 20 at 9:22














up vote
0
down vote

favorite












Wondering what the dots mean (and what the whole element it's a part of means) in the slide below (above pos and neg). I have seen them in another similar presentation on data-flow lattices and Galois connections.



enter image description here




lattice-orders galois-connections




share|cite|improve this question



















  • The context appears to be ocw.mit.edu/courses/electrical-engineering-and-computer-science/…
    – MJD
    Jul 20 at 9:22












up vote
0
down vote

favorite









up vote
0
down vote

favorite











Wondering what the dots mean (and what the whole element it's a part of means) in the slide below (above pos and neg). I have seen them in another similar presentation on data-flow lattices and Galois connections.



enter image description here




lattice-orders galois-connections




share|cite|improve this question











Wondering what the dots mean (and what the whole element it's a part of means) in the slide below (above pos and neg). I have seen them in another similar presentation on data-flow lattices and Galois connections.



enter image description here





lattice-orders galois-connections





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asked Jul 20 at 8:43









Lance Pollard

1,090723




1,090723











  • The context appears to be ocw.mit.edu/courses/electrical-engineering-and-computer-science/…
    – MJD
    Jul 20 at 9:22
















  • The context appears to be ocw.mit.edu/courses/electrical-engineering-and-computer-science/…
    – MJD
    Jul 20 at 9:22















The context appears to be ocw.mit.edu/courses/electrical-engineering-and-computer-science/…
– MJD
Jul 20 at 9:22




The context appears to be ocw.mit.edu/courses/electrical-engineering-and-computer-science/…
– MJD
Jul 20 at 9:22










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The context is not clear, but maybe pos means greater than zero, and dotted pos means great than or equal to zero? That would be logical, as dotted pos is the unification of pos and 0, for example.






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    The context is not clear, but maybe pos means greater than zero, and dotted pos means great than or equal to zero? That would be logical, as dotted pos is the unification of pos and 0, for example.






    share|cite|improve this answer

























      up vote
      2
      down vote



      accepted










      The context is not clear, but maybe pos means greater than zero, and dotted pos means great than or equal to zero? That would be logical, as dotted pos is the unification of pos and 0, for example.






      share|cite|improve this answer























        up vote
        2
        down vote



        accepted







        up vote
        2
        down vote



        accepted






        The context is not clear, but maybe pos means greater than zero, and dotted pos means great than or equal to zero? That would be logical, as dotted pos is the unification of pos and 0, for example.






        share|cite|improve this answer













        The context is not clear, but maybe pos means greater than zero, and dotted pos means great than or equal to zero? That would be logical, as dotted pos is the unification of pos and 0, for example.







        share|cite|improve this answer













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        answered Jul 20 at 9:13









        A. Pongrácz

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