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Subject: More very interesting $has-related questions


This is related to the whole question about when/if it matters what $has relationships are expressed as XDI predicates vs. subjects.

Again, this only comes up because we're now saying $has statements can be expressed either way, i.e., =example/+email and =example+email identify the same point in the XDI graph.

So the first question is: does an XDI $get for the XRI =example/$has and and XDI $get for the XRI =example$has return the same results? In other words, are they equivalent statements?

The second question is: if they are equivalent, does that mean that an XDI processor should consider all three of the XDI graphs below equivalent?

#1 FULLY COLLAPSED

=example

$is$a

+person

+email

(/+home+email)

(/+work+email)

+home+email

(/+email$1)

+work+email

(/+email$1)

+email$1

example@example.com

#2 ALL BUT LAST SUBSEGMENT COLLAPSED

=example

$is$a

+person

$has

+home

+work

+email

=example+home

+email

(=example+email/$1)

=example+work

+email

(=example+email/$1)

=example+email

$1

example@example.com

#3 FULLY EXPANDED

=example

$is$a

+person

$has

+home+email

+work+email

+email$1

=example+home+email

$is

=example+email$1

=example+work+email

$is

=example+email$1

=example+email$1

$value

example@example.com


*********************
Again, this will make for fascinating discussion on tomorrow's call.

=Drummond


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