16:04:45 RRSAgent has joined #rif 16:04:45 logging to http://www.w3.org/2008/11/10-rif-irc 16:05:13 zakim, aaaa is me 16:05:13 +kifer; got it 16:08:07 Instructions for rrsagent and script: http://dev.w3.org/2002/scribe/scribedoc.htm 16:09:40 Michael: document is almost as long as BLD but they need to read BLD as well anyway 16:10:19 http://www.w3.org/2005/rules/wiki/index.php?title=Core&diff=6261&oldid=4414 16:12:11 # 7 RIF-BLD as a Specialization of the RIF Framework [RIF-FLD] 16:12:11 * 7.1 The Presentation Syntax of RIF-BLD as a Specialization of RIF-FLD 16:12:11 * 7.2 The Semantics of RIF-BLD as a Specialization of RIF-FLD 16:12:11 * 7.3 The XML Serialization of RIF-BLD as a Specialization of RIF-FLD 16:12:11 * 7.4 RIF-BLD Conformance as a Specialization of RIF-FLD 16:12:46 http://www.w3.org/2005/rules/wiki/BLD#RIF-BLD_as_a_Specialization_of_the_RIF_Framework_.5BRIF-FLD.5D 16:15:22 AxelPolleres has joined #rif 16:15:28 sorry, I am late. 16:15:45 call-in details as usual? 16:16:06 Michael: suggest replacing 2.1 to 2.5 by just summary of changes without the full summary 16:17:14 +??P6 16:17:28 http://www.w3.org/2005/rules/wiki/Core#RIF-Core_Semantics 16:18:03 Michael: it is not standalone, too long for something where you need to refer back to BLD anyway 16:20:08 7.2 The Semantics of RIF-BLD as a Specialization of RIF-FLD 16:20:08 This normative section defines the precise relationship between the semantics of RIF-BLD and the semantic framework of RIF-FLD. Specification of the semantics that does not rely on RIF-FLD is given in Section Direct Specification of RIF-BLD Semantics. 16:20:08 The semantics of the RIF Basic Logic Dialect is defined by specialization from the semantics of the semantic framework for logic dialects of RIF. Section Semantics of a RIF Dialect as a Specialization of the RIF Framework in [RIF-FLD] lists the parameters of the semantic framework that can be specialized. Thus, for RIF-BLD, we need to look at the following parameters: 16:20:10 * The effect of the syntax. 16:20:13 RIF-BLD does not support negation. This is the only obvious simplification with respect to RIF-FLD as far as the semantics is concerned. The restrictions on the signatures of symbols in RIF-BLD do not affect the semantics in a significant way. 16:20:16 * Truth values. 16:20:18 The set TV of truth values in RIF-BLD consists of just two values, t and f such that f * Datatypes. 16:20:23 RIF-BLD supports the datatypes listed in Section Datatypes of [RIF-DTB]. 16:20:26 * Logical entailment. 16:20:28 Recall that logical entailment in RIF-FLD is defined with respect to an unspecified set of intended semantic structures and that dialects of RIF must make this notion concrete. For RIF-BLD, this set is defined the set of all models. 16:20:31 * Import directive. 16:20:33 The semantics of the two-argument Import directive is given in [RIF-RDF+OWL]. The semantics of the one-argument directive is the same as in RIF-FLD. 16:20:38 http://www.w3.org/2005/rules/wiki/BLD#The_Semantics_of_RIF-BLD_as_a_Specialization_of_RIF-FLD 16:24:49 Michael: suggests shortening the specialization of 2.1 to 2.5 futher 16:25:05 Michael: suggests not duplicating examples but referring back to BLD 16:27:37 Michael: just focus on comparative analysis 16:35:27 hmmm, my own problem is, I am not 100% sure where I can help at the moment. (I was a bit offline the last two weeks) 16:36:45 I think for a 1st WD, it is not important to have self-containedness. 16:42:04 * As a direct specification, independently of the RIF framework for logic dialects [RIF-FLD], for the benefit of those who desire a direct path to RIF-BLD, e.g., as prospective implementers, and are not interested in extensibility issues. This version of the RIF-BLD specification is given first. 16:42:04 * As a specialization of the RIF framework for logic dialects [RIF-FLD], which is part of the RIF extensibility framework. Building on RIF-FLD, this version of the RIF-BLD specification is comparatively short and is presented in Section RIF-BLD as a Specialization of the RIF Framework at the end of this document. This is intended for the reader who is already familiar with RIF-FLD and does not need to go through the much longer direct specification of RI 16:43:11 That's fact, that 16:43:22 's not just because I joined ;-) 16:45:37 Can someone sum up the problem with the PRD semantics again? or paste the pointer to the resp. mails? 16:50:55 So, it sounds like BLD needs change, I am not really clear on the implications on Core editing. If taking over a part, I would prefer to have it clearly separated from BLD changes. 16:51:45 http://www.w3.org/2005/rules/wiki/Core#Mapping_from_the_Presentation_Syntax_to_the_XML_Syntax 16:53:49 (Atom/Expr positional arguments role, with fixed 'ordered' attribute, containing n TERMs) 16:54:03 - args 16:54:15 http://www.w3.org/2005/rules/wiki/BLD#XML_for_the_Condition_Language 16:55:56 We do have slots in the head, yes? 16:56:28 Axel - yes frame slots 16:57:02 " As a direct specification" 16:58:37 Core-Self- 16:58:53 CoreSelfContained 17:06:46 Definition (Models). A multi-structure I is a model of a formula, f, written as I |= f, iff TValI(f) = t. Here f can be a RIF-Core document or a non-document formula. ? 17:07:07 http://www.w3.org/2005/rules/wiki/Core#RIF-Core_Semantics 17:11:42 Maybe Gary can help us next week (in the Core telecon) with understanding the relevant parts of the PRD semantics? 17:14:10 "In order to allow production rule systems and logic programming systems to interchange rulesets via RIF-Core we define a strictly safe subset of RIF-Core and only require minimally conformant RIF-Core consumers to correctly translate this safe subset." 17:14:39 http://www.w3.org/2005/rules/wiki/Core#Conformance_Clauses 17:15:20 Axel: could replace "strictly safe" by "safe" and so replace "minimally conformant" by "safely conformant" 17:15:50 We can just talk about "safe" instead of "strictly safe" ... then we can just rename "minimally conformant" to "safely conformant" 17:19:06 I can do it now. 17:22:48 -kifer 17:22:53 rrsagent, make log public 17:23:09 rrsagent, draft minutes 17:23:09 I have made the request to generate http://www.w3.org/2008/11/10-rif-minutes.html DaveReynolds 17:23:39 -AxelPolleres 17:25:00 -DaveReynolds 17:25:04 -Harold 17:25:05 SW_RIF(CORE)11:00AM has ended 17:25:07 Attendees were Harold, DaveReynolds, +1.631.833.aaaa, kifer, AxelPolleres 17:25:26 rrsagent, draft minutes 17:25:26 I have made the request to generate http://www.w3.org/2008/11/10-rif-minutes.html DaveReynolds