... > >> 1. *Non-existence expressed by omisson of keyword.* Non-existence of >> a value in a key/value-pair must be expressed by omission of the whole >> key/value pair, not by `null` as a value. >> ... >> >> Just to add that I understand null should be interpreted as "I don't know > the value", and not as the non-existance of a value. "I don't know" is a > superset that includes the non-existance. > > Yes! You are absolutely right. That is a very important distinction. Thanks for pointing it out!
Regards /Henning PS In our evaluator, it means simply "not calculated yet". But in other data it means "not given". What this does, if I observe correctly, is to free up the data to convey just that information that is present, but yet to keep the perspective/framing/conceptual meaning the same as if additional data were present! That is a very powerful concept, I think. I am also starting to consider the possibility that it is a pervasive principle in Natural Language (that makes word classes possible etc), although that is yet to be explored. > In that sense, omitting the keyword could be interpreted as "I don't know" > instead of "omission" only. Yet, not sure if it was Ritchie intention. > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "Clojure" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/clojure/Dbh-5kNYKgE/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
