-- card: 10370 from stack: in -- bmap block id: 12382 -- flags: 4000 -- background id: 8367 -- name: Production Rules -- part 2 (field) -- low flags: 01 -- high flags: 0001 -- rect: left=41 top=79 right=211 bottom=470 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 14 -- style flags: 256 -- line height: 18 -- part name: -- part 3 (field) -- low flags: 01 -- high flags: 0000 -- rect: left=49 top=226 right=252 bottom=79 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 14 -- style flags: 16640 -- line height: 18 -- part name: -- part 4 (field) -- low flags: 01 -- high flags: 0000 -- rect: left=80 top=227 right=262 bottom=276 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: -- part 5 (field) -- low flags: 01 -- high flags: 0000 -- rect: left=80 top=268 right=290 bottom=275 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: -- part 6 (field) -- low flags: 01 -- high flags: 0000 -- rect: left=21 top=267 right=291 bottom=76 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 14 -- style flags: 16640 -- line height: 18 -- part name: -- part 9 (field) -- low flags: 01 -- high flags: 0001 -- rect: left=318 top=218 right=312 bottom=509 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 14 -- style flags: 256 -- line height: 18 -- part name: -- part contents for background part 1 ----- text ----- Production Rules -- part contents for card part 1 ----- text ----- Production Rules -- part contents for card part 2 ----- text ----- The heuristics in most expert systems are usually captured in the form of production rules. Socrates may have been the original inventor of the production rule with this now classic approach to problem solving logic. A Rule is a simple "If-Then" logical statement that expresses a relationship between different Facts. -- part contents for card part 3 ----- text ----- If: -- part contents for card part 4 ----- text ----- All men are mortal Socrates is a man -- part contents for card part 6 ----- text ----- Then: -- part contents for card part 5 ----- text ----- Socrates is mortal -- part contents for card part 9 ----- text ----- By proving that all of the Assertions are true, we can infer that the Conclusion is also true.