Guys, just wanted to point out this possibly relevant example
https://github.com/opencog/opencog/tree/master/examples/pln/which-product Nil On 02/12/2017 06:22 AM, Ben Goertzel wrote:
A more typical idiom would be EvaluationLink PredicateNode "Price" ListLink ConceptNode "18 oz. jar Skippy peanut butter" QuantityNode "$7" or e.g. ContextLink AndLink ConceptNode "Addis Ababa" TimeNode "2017" EvaluationLink PredicateNode "Price" ListLink ConceptNode "18 oz. jar Skippy peanut butter" QuantityNode "$7" If we want to say that every peanut butter jar has a price, we could say ForAllLink $X ImplicationLink InheritanceLink $X ConceptNode "peanut butter jar" ThereExistsLink $P EvaluationLink PredicateNode "Price" ListLink ConceptNode $X QuantityNode $P and we could also make an abstraction using DefineLink that would let us say EvaluationLink DefinedPredicateNode "hasQuantitativeProperty" ListLink ConceptNode "peanut butter jar" PredicateNode "price" where the DefinedPredicateNode "hasQuantitativeProperty" ListLInk $Con $Prop is set up with DefineLink to mean ForAllLink $X ImplicationLink InheritanceLink $X ConceptNode $Con ThereExistsLink $P EvaluationLink PredicateNode $Prop ListLink ConceptNode $X QuantityNode $P So I guess DefinedPredicateNode "hasQuantitativeProperty" is the syntactic sugar you're looking for, maybe, but you would have to build it (apologies the above syntax is not exact...) ben On Sat, Feb 11, 2017 at 3:07 PM, Alex <[email protected]> wrote:Hi! Should I write: OwnerPartLink Good Price Or is some syntactic sugar available especially for those kinds of link? -- You received this message because you are subscribed to the Google Groups "opencog" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/opencog. To view this discussion on the web visit https://groups.google.com/d/msgid/opencog/355d434e-0713-4a9c-802d-f2082c28fc37%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
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