Missing weak supplementation axiom for occurrents

[alanruttenberg]

It was failing in the model so I removed it with the intention of fixing the model at some point, but never got back to it.
There is weak supplementation only for temporal regions.

[michaelrabenberg]

Each of the extant weak-supplementation axioms, vbw-1 and fyf-1, has a (instance-of _ temporal-region _) clause in the antecedent that I think is unnecessary. For example take fyf-1; I've boldfaced the clause I have in mind:

(cl:comment "continuant-part-of has weak supplementation [fyf-1]"
(forall (t x y)
(if
(and (instance-of x continuant t) (instance-of y continuant t)
(instance-of t temporal-region t))
(if (and (continuant-part-of x y t) (not (= x y)))
(exists (z)
(and (instance-of z continuant t) (continuant-part-of z y t)
(not (= z y))
(not
(exists (overlap)
(and (instance-of overlap continuant t)
(continuant-part-of overlap x t)
(continuant-part-of overlap z t))))))))))

What of importance would be lost if the boldfaced clause and the analogous one in vbw-1 were deleted and any consequently necessary adjustments were made? (With this one I think you can just delete the clause and that's that (haven't checked) but with the other one I think a quantified variable needs to be deleted.)

[michaelrabenberg]

Another seemingly deletable clause in boldface; another clause in italics for reasons stated below:

(cl:comment "continuant-part-of has weak supplementation [fyf-1]"
(forall (t x y)
(if
(and (instance-of x continuant t) (instance-of y continuant t)
(instance-of t temporal-region t))
(if (and (continuant-part-of x y t) (not (= x y)))
(exists (z)
(and (instance-of z continuant t) (continuant-part-of z y t)
(not (= z y))
(not
(exists (overlap)
(and (instance-of overlap continuant t)
(continuant-part-of overlap x t)
(continuant-part-of overlap z t))))))))))

The boldfaced clause is entailed by the italicized one.