Questions about continuant fiat boundaries

[gregfowlerphd]

This isn't really a bug, just a series of questions (though I suppose it's possible they might lead to a bug being uncovered).

The elucidation of ‘continuant fiat boundary’ reads:

A continuant fiat boundary b is an immaterial entity that is of zero, one or two dimensions & such that there is no time t when b has a spatial region as continuant part & whose location is determined in relation to some material entity

The final clause here suggests, without outright stating, that every CFB is a boundary of some material entity. Is that suggestion correct?

Also, while the elucidation indicates that every CFB’s location is determined in relation to some material entity, can a CFB’s location also be determined in relation to something that isn’t a material entity? And can a CFB be a boundary of something that isn’t a material entity?

[wceusters]

This part of BFO is indeed not well documented and worked out. Michael and I looked a bit deeper in issues and possibilities re 'surface' a subtype of CFB. See https://www.utwente.nl/en/eemcs/fois2024/resources/papers/ceusters-fiat-surfaces-in-basic-formal-ontology.pdf and in that document a link to several possible more elaborated views.

[gregfowlerphd]

@wceusters: Thanks for the link, Werner. Really look forward to reading the paper!

[johnbeve]

@gregfowlerphd @wceusters
Moving this back to the Issue tracker; apologies for the back and forth. See issue here #107