Relation PROPER-SUBSET

• Defined in theory: Kif-sets
• Source code: kif-sets.lisp

Slots on this relation:

Documentation:

The sentence {tt (proper-subset $tau_1$ $tau_2$)} is true if the set denoted by $tau_1$ is a subset of the set denoted by $tau_2$ but not vice-versa.

Arity: 2

Subrelation-Of: Subset

Axioms:

(<=> (Proper-Subset ?S1 ?S2)
     (And (Subset ?S1 ?S2) (Not (Subset ?S2 ?S1))))

Notes:

• Source: KIF Version 3.0 Specification