On 1/18/19 3:12 PM, Johannes Castner wrote:
Do you know of a simpler way than to hand-code those Axioms individually? I mean, do you know if they might not already be encoded somewhere?  If I have to, I'll encode all of them by hand--quite a project!

Unfortunately I doubt such axioms are encoded anywhere.

I have intended to supplement PLN rules with higher order facts (HOF) to, among other things, define an ontology of relationships such as

ImplicationScope (stv 1 1)
  P
  And
    Member
      P
      Concept "binary"
    Member
      P
      Concept "transitive"
  ImplicationScope
    VariableList X Y Z
    And
      Evaluation
        P
        List X Y
      Evaluation
        P
        List Y Z
    Evaluation
      P
      List X Z

so that one may directly write

Member (stv 1 1)
   Predicate "be-friends"
   Concept "transitive"

Then PLN would need an extra step to reason about the transitiveness of be-friends but it would make it much more compact to encode.

These facts are planned to be placed under

https://github.com/opencog/opencog/tree/master/opencog/pln/facts

but, as you can see, only one is present ATM.

Nil

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