, ▁vol . ▁ 1 4 , ▁pp .   8 0 8 – 8 2 1 , ▁December ▁ 2 0 0 6 .</ ref > ▁ ▁For ▁the ▁reader ▁who ▁is ▁new ▁to ▁type - 2 ▁f uz zy ▁sets ▁and ▁systems ▁and ▁wants ▁to ▁learn ▁more ▁about ▁them , ▁wants ▁all ▁of ▁the ▁details , ▁wants ▁a ▁top - down ▁presentation — from ▁general ▁type - 2 ▁to ▁interval ▁type - 2 — , ▁and ▁wants ▁to ▁see ▁how ▁they ▁compare ▁with ▁type - 1 ▁f uz zy ▁sets ▁and ▁systems , ▁the ▁easiest ▁way ▁to ▁do ▁this ▁is ▁to ▁read ▁M end el ' s ▁ 2 0 0 1 ▁text book . ▁ ▁For ▁the ▁reader ▁who ▁wants ▁to ▁learn ▁about ▁a ▁very ▁powerful ▁and ▁useful ▁representation ▁for ▁general ▁type - 2 ▁f uz zy ▁sets , ▁in ▁terms ▁of ▁simpler ▁type - 2 ▁f uz zy ▁sets ▁that ▁are ▁called ▁embedded ▁type - 2 ▁f uz zy ▁sets , ▁read ▁the ▁paper ▁by ▁M end el ▁and ▁John . ▁ ▁For ▁the ▁reader ▁who ▁may ▁already ▁be ▁familiar ▁with ▁type - 2 ▁f uz zy ▁sets ▁and ▁systems ▁and ▁who ▁wants ▁to ▁know ▁what ▁has ▁happened ▁since ▁the ▁ 2 0 0 1 ▁publication ▁of ▁M end el ' s ▁book , ▁see ▁M end el ' s ▁ 2 0 0 7 ▁journal ▁article ▁and ▁also ▁the ▁ 2 0 0 8 ▁book ▁by ▁Cast illo ▁and ▁Mel in . ▁ ▁The ▁February ▁ 2 0