Dear All,

Here my homework:

CRM archaeo - Issue  303

The CRM-SIG discussed that there is a link between the Range of AP20 to the range of AP19 of type P157 at rest relative to. Means, an Embedding must be completely contain in a Statigraphic Volume Unit and not move within it, if you all agree.

I have added the FOL expressions to A2, A7, AP19, AP20, changed the quantification and scope note of AP19, AP20:

A2 Stratigraphic Volume Unit

Subclass of: A8 <#_A8_Stratigraphic_Unit>Stratigraphic Unit

Scope Note: This class comprises connected portions of terrain or other solid structure on, in, or under the surface of earth or seafloor exhibiting some homogeneity of structure or substance and completely bounded by surfaces or discontinuities in substance or structure with respect to other portions of the terrain or surfaces of objects/finds.

An instance of A8 Stratigraphic Unit may contain physical objects.
The internal continuity and the boundaries of an instance of A8 Stratigraphic Unit should be of a kind that can be attributed to a single genesis event or process and have the potential to be observed.

One genesis event may have created more than one SU.
An instance of A8 Stratigraphic Unit is regarded to exist as long as a part of its matter is still in place with respect to a surrounding reference space such that its spatial features can be associated with effects of the genesis process of interest. Normally at least one of the surfaces (such as the lower one) from its genesis event will remain during its existence.

This also implies that a certain degree of coherent (“conformal”) deformation is tolerable within its time-span of existence. Therefore the place an instance of A8 Stratigraphic Unit occupies can be uniquely identified with respect to the surrounding reference space of archaeological interest.

Examples:

The stratigraphic deposit unit number (2) of Figure 5 representing the filling of a post hole

In First Order Logic:

A8(x) ⊃A2(x)


     A7 Embedding

Subclass of: S16 <#_S33_Relative_Depth>State

Superclass of:

Scope Note: This class comprises the states of instances of E18 Physical Things of being partially or completely embedded at a particular position with relative stability in one or more A2 Stratigraphic Volume Units. Normally, an embedding is expected having been stable from the time of generation on of the first A2 Stratigraphic Volume Unit that surrounds it. However, it may also be due to later intrusion. As an empirical fact, the expert may only be able to decide that a particular embedding is not recent, i.e., has been persisting for longer than the activity that encountered it. This class can be used to document the fact of embedding generally with respect to the surrounding matter or more specifically with respect to a more precise position within this matter. It further allows for specifying temporal bounds for which a particular embedding has been existing as specified according to evidence.

Examples:

The excavator declared the post holes [7] and [8] in Figure 4 to be part of one building

In First Order Logic:

A7(x) ⊃S16(x)

Properties:**

AP17 <#_AP17_is_found>is found by (found): S19 <#_S19_Encounter_Event>Encounter Event


AP18 <#_AP18_is_embedding>is embedding of (is embedded): E18 <#_E18_Physical_Thing>Physical Thing

AP19 <#_P19_was_intended>is embedding in (contains embedding): A2 <#_A2_Stratigraphic_Volume>Stratigraphic Volume Unit

AP20 <#_AP20_is_embedding>is embedding at (contains): E53 <#_E53_Place_1>Place


     AP19 is embedding in (contains embedding)

Domain: A7 <#_A7_Embedding>Embedding


Range: A2 <#_A2_Stratigraphic_Volume>Stratigraphic Volume Unit

Quantification:one to many (1,1:0,n)

Scope note:This property identifies the instance of A2 Stratigraphic Volume Unit that contains the A7 Embedding. An Embedding may not extend over more than one instance of A2 Stratigraphic Volume Unit.

In First Order Logic:

AP19(x,y) ⊃A7(x)

AP19(x,y) ⊃A2(y)


     AP20 is embedding at (contains)

Domain: A7 <#_A7_Embedding>Embedding

Range: E53 <#_E53_Place>Place

Quantification:one to many (1,n:0,n)

Scope note:This property identifies the E53 Place that is documented as the E53 Place of the A7 Embedding. This place must be at rest relative to the instance of A2 Stratigraphic Volume Unit that contains the A7 Embedding.

In First Order Logic:

AP20(x,y) ⊃A7(x)

AP20(x,y) ⊃E53(y)

AP20(x,y) ⊃($z)[ A2(z) ∧AP19(x,z) ∧P157(y,z)]


     P157is at rest relative to (provides reference space for)

Domain: _E53_ <#_SP3_Reference_Space> Place

Range: _E18_ <#_E18_Physical_Thing>Physical Thing

Superproperty of: E53 <#_E53_Place> Place. P59i is located on or within: E18 <#_E18_Physical_Thing> Physical Thing

Quantification: many to many, necessary, dependent (1,n:0,n)

Scope note:This property associates an instance of E53 Place with the instance of E18 Physical Thing that determines a reference space for this instance of E53 Place by being at rest with respect to this reference space. The relative stability of form of an E18 Physical Thing defines its default reference space. The reference space is not spatially limited to the referred thing. For example, a ship determines a reference space in terms of which other ships in its neighbourhood may be described. Larger constellations of matter, such as continental plates, may comprise many physical features that are at rest with them and define the same reference space.

Examples:

§The spatial extent of the municipality of Athens in 2014 (E53) /is at rest relative to /The Royal Observatory in Greenwich(E25)

§The place where Lord Nelson died on H.M.S. Victory (E53) /is at rest relative to /H.M.S. Victory (E22)

In First Order Logic:

P157(x,y) ⊃E53(x)

P157(x,y) ⊃E18(y)



Martin

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 Dr. Martin Doerr              |  Vox:+30(2810)391625        |
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