(1)
ãå æå¿å ±ããã®ããããããããâ€µïž ïžãã£ãŠãªã£ãŠãã®å¥œã
å æå¿å ±ããâ
ãããã®ãŠãããã¿ãããªæãæ¹å¥œãã§ãâª((èªåœå))
(2)
ãç¹ã«ããâŠå šéšæé«ã ãã©ïŒïŒ
ãã奜ãã§ã
奎ãã¯æœçã ãâ
ç§ã¯ããããããã®æ²ãæããããããªããšæããŸããïŒãã®åç»âŠç§ã®å¥œããªãã€ã³ãã¯ã³ãŒã©ã¹ã§ããæããããŠããŒã¯(unique)ã§é¢çœããã®ã«ãªã£ãã (à¹ïœ¥Ìâ¡ïœ¥Ìà¹) ãšããã§ãç§ã®äžçªå¥œããªéšå㯠-
ã©ã¹ãµãã®ããã§ããã¥ãŒã³ãã£ãŠé³ãšå ±ã«åŸãççºããã®å¥œã
ð