Landmark Events

version 2 by Jon Ingold

  • Home page
  • Beginning
  • Previous
  • Next



  • Section 6 - numerical comparison of events

    To decide if (e - a landmark) happened more than (t - a time) ago:
        if e has not happened, no;
        if the time e occurred is more than t ago, yes;
        no.

    To decide if (e - a landmark) happened less than (t - a time) ago:
        if e has not happened, no;
        if the time e occurred is less than t ago, yes;
        no.

    To decide if (e - a landmark) happened (t - a time) ago:
        if e has not happened, no;
        if the time e occurred is t ago, yes;
        no.

    To decide if (e - a landmark) happened more than (n - a number) turns ago:
        if e has not happened, no;
        if the time e occurred is more than n minutes ago, yes;
        no.

    To decide if (e - a landmark) happened less than (n - a number) turns ago:
        if e has not happened, no;
        if the time e occurred is less than n minutes ago, yes;
        no.

    To decide if (e - a landmark) happened (n - a number) turns ago:
        if e has not happened, no;
        if the time e occurred is n minutes ago, yes;
        no.