Again agree with Martin (what’s happening to me?) and like Wiggins, I have a 
copy of it on my night table for night meditation.

In my opinion the issue raised by Daria belongs to the category of the Ship of 
Theseus paradox (https://en.wikipedia.org/wiki/Ship_of_Theseus)

Franco

Prof. Franco Niccolucci
Director, VAST-LAB
PIN - U. of Florence
Scientific Coordinator
ARIADNE - PARTHENOS

Piazza Ciardi 25
59100 Prato, Italy


> Il giorno 10 apr 2018, alle ore 19:06, Martin Doerr <mar...@ics.forth.gr> ha 
> scritto:
> 
> Dear Daria,
> 
> This is a much debated question. I follow the theory of David Wiggins 
> (Sameness and Substance Renewed (Cambridge, 2001)), which appears to me to be 
> consistent. There is no natural identity to something material. We need to 
> specify under which category we consider some matter. The category must 
> provide identity criteria beforehand. The same matter may participate in 
> different "things" of different identity. The identity conditions of a 
> category must serve a purpose. 
> The purpose is identified by a question.
> 
> So, question: "Is this an original Varsari? " could be defined in terms of 
> the actual matter Varsari had in his hands and the way he gave it artistic 
> shape, regardless later modifications. We could define the end of existence 
> when major parts of the paint layer are lost, or when the last major part is 
> lost, or latest, when the whole paint layer is lost.
> 
> This category of "original painting" would "answer": "still the same".
> Another definition may be based on phases and degrees of replaced matter. But 
> they easily run into problems with
> environmentally caused degradation and natural decay of material, which is a 
> continuous process. So, change of a
> physical object is inevitable and continuous. It is much more prominent in 
> living beings. 
> 
> I would associate conservation states rather with secondary features of 
> objects and not with their overall identity.
> Again we need a definition of relevant traits separating one from the other.
> 
> I agree that physical objects can change form. This is why we talk about 
> "relative stability". The specific type should determine which deviation of 
> form is "unnatural","renders the object unusable", "destroyed" or whatever 
> may determine its practical end of existence and transition into something 
> else or disappearance.
> 
> Best,
> 
> Martin
> 
> On 4/10/2018 4:57 PM, Дарья Юрьевна Гук wrote:
>> Maybe I am not right, but a state of conservation is under discussion. 
>> "Vasari" before of after restoration. Is it the same identity? Same Vasari, 
>> artefact could change form but we tell about it "the same item". 
>> 
>> 
>> With kind regards,
>> Daria Hookk
>> 
>> Senior Researcher of
>> the dept. of archaeology of
>> Eastern Europe and Siberia of 
>> the State Hermitage Museum,
>> ICOMOS member
>> 
>> 
>> 190000, Санкт-Петербург, Дворцовая наб.34
>> Тел. (812) 3121966; мест. 2548
>> Факс (812) 7109009
>> E-mail: 
>> ho...@hermitage.ru
>> 
>> 
>> 
>> 
>> ----- Original Message -----
>> From: Martin Doerr [
>> mailto:mar...@ics.forth.gr
>> ]
>> To: 
>> crm-sig@ics.forth.gr
>> 
>> Sent: Tue, 10 Apr 2018 17:05:02 +0400
>> Subject: Re: [Crm-sig] HW S11
>> 
>> 
>> 
>>> Dear All,
>>> 
>>> By the way, an interesting aspect of samples is that they can be split 
>>> without loosing their identity. Obviously, there is
>>> some complexity in the object-ness of the sample versus its substance. 
>>> Tracing split samples is a practical issue in labs.
>>> 
>>> Any thoughts?
>>> 
>>> Best,
>>> 
>>> martin
>>> 
>>> On 4/10/2018 1:16 PM, Martin Doerr wrote:
>>> 
>>>> Dear Martijn,
>>>> 
>>>> A better formulation is always welcome!
>>>> 
>>>> Logically, it is correct: "no stability of form is required" does NOT 
>>>> exclude stability of form. I give explicitly the example "the sequence 
>>>> of layers of a bore core". The point is, that we take a sample for a 
>>>> particular feature it will be a witness for. The identity of the 
>>>> sample and its duration of existence as a sample depends on the kind 
>>>> of feature that needs to be preserved, be it a stratigraphy, a 
>>>> chemical composition or whatever. Consequently, it can be diminished 
>>>> quite substanstially without loosing this identity, whereas other 
>>>> impacts may not change its discreteness as a stable piece of matter, 
>>>> but destroy the relevant composition.
>>>> 
>>>> Proposals welcome.
>>>> 
>>>> Best,
>>>> 
>>>> Martin
>>>> 
>>>> On 4/9/2018 11:15 PM, P.M. van Leusen wrote:
>>>> 
>>>>> "no stability of form is required" would exclude some types of 
>>>>> samples, e.g. kubiena tin samples taken for microstratigraphy, 
>>>>> palynology, or paleomagnetism. I would advise excising this phrase.
>>>>> Martijn
>>>>> 
>>>>> On Fri, Mar 30, 2018, 21:19 Martin Doerr <
>>>>> mar...@ics.forth.gr
>>>>>  
>>>>> 
>>>>> <mailto:mar...@ics.forth.gr>
>>>>> > wrote:
>>>>> 
>>>>>     Dear All,
>>>>> 
>>>>>     Here my proposal for a better scope note:
>>>>> 
>>>>> 
>>>>>           S11 Amount of Matter[1]
>>>>> 
>>>>>     Subclass of: S10
>>>>>     <#m_2886038186972212311__S10_Material_Substantial> Material
>>>>>     Substantial
>>>>> 
>>>>>     Superclass of:S12 <#m_2886038186972212311__S12_Amount_of> Amount
>>>>>     of Fluid
>>>>> 
>>>>>     S13 <#m_2886038186972212311__S13_Sample> Sample
>>>>> 
>>>>>     Scope note:This class comprises fixed amounts of matter specified
>>>>>     as some air, some water, some soil, etc., defined by the total
>>>>>     and integrity of their material content. In order to be able to
>>>>>     identify and recognize in practice one instance of S11 Amount of
>>>>>     Matter, some sort of confinement is needed that serves as a
>>>>>     constraint for the enclosed matter and the integrity of the
>>>>>     content, such as a bottle. In contrast to instances of E18
>>>>>     Physical Thing, no stability of form is required. The content may
>>>>>     be put into another bottle without loosing its identity.
>>>>>     Subclasses may define very different identity conditions for the
>>>>>     integrity of the content, such as chemical composition, or the
>>>>>     sequence of layers of a bore core. Whereas an instance of E18
>>>>>     Physical Thing may gradually change form and chemical composition
>>>>>     preserving its identity, such as living beings, an instance of
>>>>>     S11 Amount of Matter may loose its identifying features by such
>>>>>     processes. What matters for the identity of an instance of S1
>>>>>     Amount of Matter is the preservation of a relevant composition
>>>>>     from the initial state of definition on.
>>>>> 
>>>>>    
>>>>> 
>>> ------------------------------------------------------------------------
>>> 
>>>>>     -- 
>>>>>     --------------------------------------------------------------
>>>>>       Dr. Martin Doerr              |  Vox:+30(2810)391625        |
>>>>>       Research Director             |  Fax:+30(2810)391638        |
>>>>>                                     |  
>>>>> Email:mar...@ics.forth.gr
>>> <mailto:mar...@ics.forth.gr>
>>>   |
>>> 
>>>>>                                                                   |
>>>>>                     Center for Cultural Informatics               |
>>>>>                     Information Systems Laboratory                |
>>>>>                      Institute of Computer Science                |
>>>>>         Foundation for Research and Technology - Hellas (FORTH)   |
>>>>>                                                                   |
>>>>>                     N.Plastira 100, Vassilika Vouton,             |
>>>>>                      GR70013 Heraklion,Crete,Greece               |
>>>>>                                                                   |
>>>>>                   Web-site:
>>>>> http://www.ics.forth.gr/isl
>>>>>             |
>>>>>     --------------------------------------------------------------
>>>>> 
>>>>>     _______________________________________________
>>>>>     Crm-sig mailing list
>>>>>     
>>>>> Crm-sig@ics.forth.gr <mailto:Crm-sig@ics.forth.gr>
>>>>> 
>>>>>     
>>>>> http://lists.ics.forth.gr/mailman/listinfo/crm-sig
>>>>> 
>>>>> 
>>>>> 
>>>> -- 
>>>> --------------------------------------------------------------
>>>>   Dr. Martin Doerr              |  Vox:+30(2810)391625        |
>>>>   Research Director             |  Fax:+30(2810)391638        |
>>>>                                 |  
>>>> Email:mar...@ics.forth.gr
>>>>   |
>>>>                                                               |
>>>>                 Center for Cultural Informatics               |
>>>>                 Information Systems Laboratory                |
>>>>                  Institute of Computer Science                |
>>>>     Foundation for Research and Technology - Hellas (FORTH)   |
>>>>                                                               |
>>>>                 N.Plastira 100, Vassilika Vouton,             |
>>>>                  GR70013 Heraklion,Crete,Greece               |
>>>>                                                               |
>>>>               Web-site:
>>>> http://www.ics.forth.gr/isl
>>>>             |
>>>> --------------------------------------------------------------
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Crm-sig mailing list
>>>> 
>>>> Crm-sig@ics.forth.gr
>>>> http://lists.ics.forth.gr/mailman/listinfo/crm-sig
>>> 
>>> -- 
>>> --------------------------------------------------------------
>>>   Dr. Martin Doerr              |  Vox:+30(2810)391625        |
>>>   Research Director             |  Fax:+30(2810)391638        |
>>>                                 |  Email: 
>>> mar...@ics.forth.gr
>>>  |
>>>                                                               |
>>>                 Center for Cultural Informatics               |
>>>                 Information Systems Laboratory                |
>>>                  Institute of Computer Science                |
>>>     Foundation for Research and Technology - Hellas (FORTH)   |
>>>                                                               |
>>>                 N.Plastira 100, Vassilika Vouton,             |
>>>                  GR70013 Heraklion,Crete,Greece               |
>>>                                                               |
>>>               Web-site: 
>>> http://www.ics.forth.gr/isl
>>>            |
>>> --------------------------------------------------------------
>>> 
>>> 
>>> 
> 
> -- 
> --------------------------------------------------------------
>  Dr. Martin Doerr              |  Vox:+30(2810)391625        |
>  Research Director             |  Fax:+30(2810)391638        |
>                                |  Email: 
> mar...@ics.forth.gr
>  |
>                                                              |        
>                Center for Cultural Informatics               |
>                Information Systems Laboratory                |
>                 Institute of Computer Science                |
>    Foundation for Research and Technology - Hellas (FORTH)   |
>                                                              |
>                N.Plastira 100, Vassilika Vouton,             |
>                 GR70013 Heraklion,Crete,Greece               |
>                                                              |
>              Web-site: 
> http://www.ics.forth.gr/isl
>            |
> --------------------------------------------------------------
> 
> _______________________________________________
> Crm-sig mailing list
> Crm-sig@ics.forth.gr
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