Show 5 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author exact FA80DB14-F0ED-11E1-A9DE-61C894A0A6B4 Add to list Journal Article A1 On representing sentential connectives of Leśniewski's elementary protothetic Rafal Urbaniak (UGent) (2006) JOURNAL OF LOGIC AND COMPUTATION. 16(4). p.451-460 Add to list Journal Article A2 Ontological functors of Lesniewski's elementary ontology Rafal Urbaniak (UGent) (2006) REPORTS ON MATHEMATHICAL LOGIC. 40. p.15-43 Add to list Journal Article A2 Some non-standard interpretations of the axiomatic basis of Leśniewski’s Ontology Rafal Urbaniak (UGent) (2006) AUSTRALASIAN JOURNAL OF LOGIC. 4. p.13-46 Add to list Book Chapter Analiza rozumowań reistycznych Tadeusza Kotarbińskiego Rafal Urbaniak (UGent) (2003) Logiczne podstawy rozumowań III. p.187-200 ← Previous 1 2 … 6 7 8 9