... Ch ng Bi u di n tri th c nh logic v t b c m t \ Ph n 2.3 : u Lôgic v t b c m t u Bi u di n tri th c nh logic v t b c m t 2/69 Limitations of Propositional Logic \ Can't directly talk ... all triangles have sides 3/69 Predicate Logic Overview \ Predicate Logic u Principles u Objects u Relations u properties \ Syntax \ Semantics \ Extensions and Variations \ Proof in Predicate Logic ... ISRAINING, ON(table), P(X, blue), BETWEEN(X, Y, Z) 6/69 B ng ký hi u (Alphabet) \ Các phép n i logic (logical connector) : , , , u t ng ng v i phép ph nh, và, ho c, kéo theo kéo theo l n (t ng ng)...