Relation BEFORE=


Slots on this relation:

Instance-Of: Relation
Arity: 2

Equivalence Axioms:

(<=> (Before= ?Tr1 ?Tr2) (Or (Before ?Tr1 ?Tr2) (Meets ?Tr1 ?Tr2)))


Other Related Axioms:

(<=> (Before= ?Tr1 ?Tr2) (Or (Before ?Tr1 ?Tr2) (Meets ?Tr1 ?Tr2)))