--- abstract: "We introduce an abstract framework for general rough set theory from a mereological perspective and consider possible concepts of ’a priori’ granules and granulation in the same. The framework is ideal for relaxing many of the\r\nrelatively superﬂuous set-theoretic axioms and for improving the semantics of many relation based, cover-based and dialectical rough set theories. This is a\r\nrelatively simplified presentation of a section in three different recent research papers by the present author.\r\n" altloc: [] chapter: ~ commentary: ~ commref: ~ confdates: '19th September, 2009' conference: Annual Conference of the Calcutta Logic Circle' 2009 confloc: 'IBRAD, Kolkata' contact_email: ~ creators_id: - a.mani.cms@gmail.com creators_name: - family: A given: MANI honourific: '' lineage: '' date: 2009-09-19 date_type: completed datestamp: 2009-10-15 22:58:45 department: ~ dir: disk0/00/00/66/39 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 6639 fileinfo: /style/images/fileicons/application_pdf.png;/6639/1/CLCmerrou99.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: inpress issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: ~ lastmod: 2011-03-11 08:57:28 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: ~ pagerange: 1-18 pubdom: TRUE publication: ~ publisher: ~ refereed: TRUE referencetext: ~ relation_type: [] relation_uri: [] reportno: ~ rev_number: 20 series: ~ source: ~ status_changed: 2009-10-15 22:58:45 subjects: - phil-logic succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ thesistype: ~ title: "\"Possible Deﬁnitions of an ’A Priori’ Granule\r\nin General Rough Set Theory\" by A. Mani" type: confpaper userid: 5894 volume: ~